Remove telemetry experiments framework

4 files changed, 1 insertions, 1463 deletions

diff --git a/toolkit/mozapps/extensions/content/extensions.js b/toolkit/mozapps/extensions/content/extensions.js
index a799eeebb..1d8d5bb0a 100644
--- a/toolkit/mozapps/extensions/content/extensions.js
+++ b/toolkit/mozapps/extensions/content/extensions.js
@@ -22,8 +22,6 @@ XPCOMUtils.defineLazyGetter(this, "BrowserToolboxProcess", function () {
   return Cu.import("resource://gre/modules/devtools/ToolboxProcess.jsm", {}).
          BrowserToolboxProcess;
 });
-XPCOMUtils.defineLazyModuleGetter(this, "Experiments",
-  "resource:///modules/experiments/Experiments.jsm");
 
 const PREF_DISCOVERURL = "extensions.webservice.discoverURL";
 const PREF_DISCOVER_ENABLED = "extensions.getAddons.showPane";
@@ -216,23 +214,6 @@ function isDiscoverEnabled() {
   return true;
 }
 
-function getExperimentEndDate(aAddon) {
-  if (!("@mozilla.org/browser/experiments-service;1" in Cc)) {
-    return 0;
-  }
-
-  if (!aAddon.isActive) {
-    return aAddon.endDate;
-  }
-
-  let experiment = Experiments.instance().getActiveExperiment();
-  if (!experiment) {
-    return 0;
-  }
-
-  return experiment.endDate;
-}
-
 /**
  * Obtain the main DOMWindow for the current context.
  */
@@ -1316,28 +1297,7 @@ var gViewController = {
       doCommand: function cmd_neverActivateItem_doCommand(aAddon) {
         aAddon.userDisabled = true;
       }
-    },
-
-    cmd_experimentsLearnMore: {
-      isEnabled: function cmd_experimentsLearnMore_isEnabled() {
-        let mainWindow = getMainWindow();
-        return mainWindow && "switchToTabHavingURI" in mainWindow;
-      },
-      doCommand: function cmd_experimentsLearnMore_doCommand() {
-        let url = Services.prefs.getCharPref("toolkit.telemetry.infoURL");
-        openOptionsInTab(url);
-      },
-    },
-
-    cmd_experimentsOpenTelemetryPreferences: {
-      isEnabled: function cmd_experimentsOpenTelemetryPreferences_isEnabled() {
-        return !!getMainWindowWithPreferencesPane();
-      },
-      doCommand: function cmd_experimentsOpenTelemetryPreferences_doCommand() {
-        let mainWindow = getMainWindowWithPreferencesPane();
-        mainWindow.openAdvancedPreferences("dataChoicesTab");
-      },
-    },
+    }
   },
 
   supportsCommand: function gVC_supportsCommand(aCommand) {
@@ -1468,10 +1428,6 @@ function createItem(aObj, aIsInstall, aIsRemote) {
   // the binding handles the rest
   item.setAttribute("value", aObj.id);
 
-  if (aObj.type == "experiment") {
-    item.endDate = getExperimentEndDate(aObj);
-  }
-
   return item;
 }
 
@@ -2679,13 +2635,6 @@ var gListView = {
     // the existing item
     if (aInstall.existingAddon)
       this.removeItem(aInstall, true);
-
-    if (aInstall.addon.type == "experiment") {
-      let item = this.getListItemForID(aInstall.addon.id);
-      if (item) {
-        item.endDate = getExperimentEndDate(aInstall.addon);
-      }
-    }
   },
 
   addItem: function gListView_addItem(aObj, aIsInstall) {
@@ -2945,34 +2894,6 @@ var gDetailView = {
       }
     }
 
-    if (this._addon.type == "experiment") {
-      let prefix = "details.experiment.";
-      let active = this._addon.isActive;
-
-      let stateKey = prefix + "state." + (active ? "active" : "complete");
-      let node = document.getElementById("detail-experiment-state");
-      node.value = gStrings.ext.GetStringFromName(stateKey);
-
-      let now = Date.now();
-      let end = getExperimentEndDate(this._addon);
-      let days = Math.abs(end - now) / (24 * 60 * 60 * 1000);
-
-      let timeKey = prefix + "time.";
-      let timeMessage;
-      if (days < 1) {
-        timeKey += (active ? "endsToday" : "endedToday");
-        timeMessage = gStrings.ext.GetStringFromName(timeKey);
-      } else {
-        timeKey += (active ? "daysRemaining" : "daysPassed");
-        days = Math.round(days);
-        let timeString = gStrings.ext.GetStringFromName(timeKey);
-        timeMessage = PluralForm.get(days, timeString)
-                                .replace("#1", days);
-      }
-
-      document.getElementById("detail-experiment-time").value = timeMessage;
-    }
-
     this.fillSettingsRows(aScrollToPreferences, (function updateView_fillSettingsRows() {
       this.updateState();
       gViewController.notifyViewChanged();
diff --git a/toolkit/mozapps/extensions/test/browser/browser_experiments.js b/toolkit/mozapps/extensions/test/browser/browser_experiments.js
deleted file mode 100644
index 72d0ca83e..000000000
--- a/toolkit/mozapps/extensions/test/browser/browser_experiments.js
+++ /dev/null
@@ -1,645 +0,0 @@
-/* Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/publicdomain/zero/1.0/
- */
-
-Components.utils.import("resource://gre/modules/Promise.jsm", this);
-
-let {AddonTestUtils} = Components.utils.import("resource://testing-common/AddonManagerTesting.jsm", {});
-let {HttpServer} = Components.utils.import("resource://testing-common/httpd.js", {});
-
-let gManagerWindow;
-let gCategoryUtilities;
-let gExperiments;
-let gHttpServer;
-
-let gSavedManifestURI;
-let gIsEnUsLocale;
-
-const SEC_IN_ONE_DAY = 24 * 60 * 60;
-const MS_IN_ONE_DAY  = SEC_IN_ONE_DAY * 1000;
-
-function getExperimentAddons() {
-  let deferred = Promise.defer();
-  AddonManager.getAddonsByTypes(["experiment"], (addons) => {
-    deferred.resolve(addons);
-  });
-  return deferred.promise;
-}
-
-function getInstallItem() {
-  let doc = gManagerWindow.document;
-  let view = doc.getElementById("view-port").selectedPanel;
-  let list = doc.getElementById("addon-list");
-
-  let node = list.firstChild;
-  while (node) {
-    if (node.getAttribute("status") == "installing") {
-      return node;
-    }
-    node = node.nextSibling;
-  }
-
-  return null;
-}
-
-function patchPolicy(policy, data) {
-  for (let key of Object.keys(data)) {
-    Object.defineProperty(policy, key, {
-      value: data[key],
-      writable: true,
-    });
-  }
-}
-
-function defineNow(policy, time) {
-  patchPolicy(policy, { now: () => new Date(time) });
-}
-
-function openDetailsView(aId) {
-  let item = get_addon_element(gManagerWindow, aId);
-  Assert.ok(item, "Should have got add-on element.");
-  is_element_visible(item, "Add-on element should be visible.");
-
-  EventUtils.synthesizeMouseAtCenter(item, { clickCount: 1 }, gManagerWindow);
-  EventUtils.synthesizeMouseAtCenter(item, { clickCount: 2 }, gManagerWindow);
-
-  let deferred = Promise.defer();
-  wait_for_view_load(gManagerWindow, deferred.resolve);
-  return deferred.promise;
-}
-
-function clickRemoveButton(addonElement) {
-  let btn = gManagerWindow.document.getAnonymousElementByAttribute(addonElement, "anonid", "remove-btn");
-  if (!btn) {
-    return Promise.reject();
-  }
-
-  EventUtils.synthesizeMouseAtCenter(btn, { clickCount: 1 }, gManagerWindow);
-  let deferred = Promise.defer();
-  setTimeout(deferred.resolve, 0);
-  return deferred;
-}
-
-function clickUndoButton(addonElement) {
-  let btn = gManagerWindow.document.getAnonymousElementByAttribute(addonElement, "anonid", "undo-btn");
-  if (!btn) {
-    return Promise.reject();
-  }
-
-  EventUtils.synthesizeMouseAtCenter(btn, { clickCount: 1 }, gManagerWindow);
-  let deferred = Promise.defer();
-  setTimeout(deferred.resolve, 0);
-  return deferred;
-}
-
-add_task(function* initializeState() {
-  gManagerWindow = yield open_manager();
-  gCategoryUtilities = new CategoryUtilities(gManagerWindow);
-
-  registerCleanupFunction(() => {
-    Services.prefs.clearUserPref("experiments.enabled");
-    if (gHttpServer) {
-      gHttpServer.stop(() => {});
-      if (gSavedManifestURI !== undefined) {
-        Services.prefs.setCharPref("experments.manifest.uri", gSavedManifestURI);
-      }
-    }
-    if (gExperiments) {
-      let tmp = {};
-      Cu.import("resource:///modules/experiments/Experiments.jsm", tmp);
-      gExperiments._policy = new tmp.Experiments.Policy();
-    }
-  });
-
-  let chrome = Cc["@mozilla.org/chrome/chrome-registry;1"].getService(Ci.nsIXULChromeRegistry);
-  gIsEnUsLocale = chrome.getSelectedLocale("global") == "en-US";
-
-  // The Experiments Manager will interfere with us by preventing installs
-  // of experiments it doesn't know about. We remove it from the equation
-  // because here we are only concerned with core Addon Manager operation,
-  // not the superset Experiments Manager has imposed.
-  if ("@mozilla.org/browser/experiments-service;1" in Components.classes) {
-    let tmp = {};
-    Cu.import("resource:///modules/experiments/Experiments.jsm", tmp);
-    // There is a race condition between XPCOM service initialization and
-    // this test running. We have to initialize the instance first, then
-    // uninitialize it to prevent this.
-    gExperiments = tmp.Experiments.instance();
-    yield gExperiments._mainTask;
-    yield gExperiments.uninit();
-  }
-});
-
-// On an empty profile with no experiments, the experiment category
-// should be hidden.
-add_task(function* testInitialState() {
-  Assert.ok(gCategoryUtilities.get("experiment", false), "Experiment tab is defined.");
-  Assert.ok(!gCategoryUtilities.isTypeVisible("experiment"), "Experiment tab hidden by default.");
-});
-
-add_task(function* testExperimentInfoNotVisible() {
-  yield gCategoryUtilities.openType("extension");
-  let el = gManagerWindow.document.getElementsByClassName("experiment-info-container")[0];
-  is_element_hidden(el, "Experiment info not visible on other types.");
-});
-
-// If we have an active experiment, we should see the experiments tab
-// and that tab should have some messages.
-add_task(function* testActiveExperiment() {
-  let addon = yield install_addon("addons/browser_experiment1.xpi");
-
-  Assert.ok(addon.userDisabled, "Add-on is disabled upon initial install.");
-  Assert.equal(addon.isActive, false, "Add-on is not active.");
-
-  Assert.ok(gCategoryUtilities.isTypeVisible("experiment"), "Experiment tab visible.");
-
-  yield gCategoryUtilities.openType("experiment");
-  let el = gManagerWindow.document.getElementsByClassName("experiment-info-container")[0];
-  is_element_visible(el, "Experiment info is visible on experiment tab.");
-});
-
-add_task(function* testExperimentLearnMore() {
-  // Actual URL is irrelevant.
-  Services.prefs.setCharPref("toolkit.telemetry.infoURL",
-                             "http://mochi.test:8888/server.js");
-
-  yield gCategoryUtilities.openType("experiment");
-  let btn = gManagerWindow.document.getElementById("experiments-learn-more");
-
-  if (!gUseInContentUI) {
-    is_element_hidden(btn, "Learn more button hidden if not using in-content UI.");
-    Services.prefs.clearUserPref("toolkit.telemetry.infoURL");
-
-    return;
-  }
-
-  is_element_visible(btn, "Learn more button visible.");
-
-  let deferred = Promise.defer();
-  window.addEventListener("DOMContentLoaded", function onLoad(event) {
-    info("Telemetry privacy policy window opened.");
-    window.removeEventListener("DOMContentLoaded", onLoad, false);
-
-    let browser = gBrowser.selectedBrowser;
-    let expected = Services.prefs.getCharPref("toolkit.telemetry.infoURL");
-    Assert.equal(browser.currentURI.spec, expected, "New tab should have loaded privacy policy.");
-    browser.contentWindow.close();
-
-    Services.prefs.clearUserPref("toolkit.telemetry.infoURL");
-
-    deferred.resolve();
-  }, false);
-
-  info("Opening telemetry privacy policy.");
-  EventUtils.synthesizeMouseAtCenter(btn, {}, gManagerWindow);
-
-  yield deferred.promise;
-});
-
-add_task(function* testOpenPreferences() {
-  yield gCategoryUtilities.openType("experiment");
-  let btn = gManagerWindow.document.getElementById("experiments-change-telemetry");
-  if (!gUseInContentUI) {
-    is_element_hidden(btn, "Change telemetry button not enabled in out of window UI.");
-    info("Skipping preferences open test because not using in-content UI.");
-    return;
-  }
-
-  is_element_visible(btn, "Change telemetry button visible in in-content UI.");
-
-  let deferred = Promise.defer();
-  Services.obs.addObserver(function observer(prefWin, topic, data) {
-    Services.obs.removeObserver(observer, "advanced-pane-loaded");
-    info("Advanced preference pane opened.");
-    executeSoon(function() {
-      // We want this test to fail if the preferences pane changes.
-      let el = prefWin.document.getElementById("dataChoicesPanel");
-      is_element_visible(el);
-
-      prefWin.close();
-      info("Closed preferences pane.");
-
-      deferred.resolve();
-    });
-  }, "advanced-pane-loaded", false);
-
-  info("Loading preferences pane.");
-  EventUtils.synthesizeMouseAtCenter(btn, {}, gManagerWindow);
-
-  yield deferred.promise;
-});
-
-add_task(function* testButtonPresence() {
-  yield gCategoryUtilities.openType("experiment");
-  let item = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
-  Assert.ok(item, "Got add-on element.");
-  item.parentNode.ensureElementIsVisible(item);
-
-  let el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
-  // Corresponds to the uninstall permission.
-  is_element_visible(el, "Remove button is visible.");
-  // Corresponds to lack of disable permission.
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "disable-btn");
-  is_element_hidden(el, "Disable button not visible.");
-  // Corresponds to lack of enable permission.
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "enable-btn");
-  is_element_hidden(el, "Enable button not visible.");
-});
-
-// Remove the add-on we've been testing with.
-add_task(function* testCleanup() {
-  yield AddonTestUtils.uninstallAddonByID("test-experiment1@experiments.mozilla.org");
-  // Verify some conditions, just in case.
-  let addons = yield getExperimentAddons();
-  Assert.equal(addons.length, 0, "No experiment add-ons are installed.");
-});
-
-// The following tests should ideally live in browser/experiments/. However,
-// they rely on some of the helper functions from head.js, which can't easily
-// be consumed from other directories. So, they live here.
-
-add_task(function* testActivateExperiment() {
-  if (!gExperiments) {
-    info("Skipping experiments test because that feature isn't available.");
-    return;
-  }
-
-  gHttpServer = new HttpServer();
-  gHttpServer.start(-1);
-  let root = "http://localhost:" + gHttpServer.identity.primaryPort + "/";
-  gHttpServer.registerPathHandler("/manifest", (request, response) => {
-    response.setStatusLine(null, 200, "OK");
-    response.write(JSON.stringify({
-      "version": 1,
-      "experiments": [
-        {
-          id: "experiment-1",
-          xpiURL: TESTROOT + "addons/browser_experiment1.xpi",
-          xpiHash: "IRRELEVANT",
-          startTime: Date.now() / 1000 - 3600,
-          endTime: Date.now() / 1000 + 3600,
-          maxActiveSeconds: 600,
-          appName: [Services.appinfo.name],
-          channel: [gExperiments._policy.updatechannel()],
-        },
-      ],
-    }));
-    response.processAsync();
-    response.finish();
-  });
-
-  gSavedManifestURI = Services.prefs.getCharPref("experiments.manifest.uri");
-  Services.prefs.setCharPref("experiments.manifest.uri", root + "manifest");
-
-  // We need to remove the cache file to help ensure consistent state.
-  yield OS.File.remove(gExperiments._cacheFilePath);
-
-  Services.prefs.setBoolPref("experiments.enabled", true);
-
-  info("Initializing experiments service.");
-  yield gExperiments.init();
-  info("Experiments service finished first run.");
-
-  // Check conditions, just to be sure.
-  let experiments = yield gExperiments.getExperiments();
-  Assert.equal(experiments.length, 0, "No experiments known to the service.");
-
-  // This makes testing easier.
-  gExperiments._policy.ignoreHashes = true;
-
-  info("Manually updating experiments manifest.");
-  yield gExperiments.updateManifest();
-  info("Experiments update complete.");
-
-  let deferred = Promise.defer();
-  gHttpServer.stop(() => {
-    gHttpServer = null;
-
-    info("getting experiment by ID");
-    AddonManager.getAddonByID("test-experiment1@experiments.mozilla.org", (addon) => {
-      Assert.ok(addon, "Add-on installed via Experiments manager.");
-
-      deferred.resolve();
-    });
-  });
-
-  yield deferred.promise;
-
-  Assert.ok(gCategoryUtilities.isTypeVisible, "experiment", "Experiment tab visible.");
-  yield gCategoryUtilities.openType("experiment");
-  let el = gManagerWindow.document.getElementsByClassName("experiment-info-container")[0];
-  is_element_visible(el, "Experiment info is visible on experiment tab.");
-});
-
-add_task(function testDeactivateExperiment() {
-  if (!gExperiments) {
-    return;
-  }
-
-  // Fake an empty manifest to purge data from previous manifest.
-  yield gExperiments._updateExperiments({
-    "version": 1,
-    "experiments": [],
-  });
-
-  yield gExperiments.disableExperiment("testing");
-
-  // We should have a record of the previously-active experiment.
-  let experiments = yield gExperiments.getExperiments();
-  Assert.equal(experiments.length, 1, "1 experiment is known.");
-  Assert.equal(experiments[0].active, false, "Experiment is not active.");
-
-  // We should have a previous experiment in the add-ons manager.
-  let deferred = Promise.defer();
-  AddonManager.getAddonsByTypes(["experiment"], (addons) => {
-    deferred.resolve(addons);
-  });
-  let addons = yield deferred.promise;
-  Assert.equal(addons.length, 1, "1 experiment add-on known.");
-  Assert.ok(addons[0].appDisabled, "It is a previous experiment.");
-  Assert.equal(addons[0].id, "experiment-1", "Add-on ID matches expected.");
-
-  // Verify the UI looks sane.
-
-  Assert.ok(gCategoryUtilities.isTypeVisible("experiment"), "Experiment tab visible.");
-  let item = get_addon_element(gManagerWindow, "experiment-1");
-  Assert.ok(item, "Got add-on element.");
-  Assert.ok(!item.active, "Element should not be active.");
-  item.parentNode.ensureElementIsVisible(item);
-
-  // User control buttons should not be present because previous experiments
-  // should have no permissions.
-  let el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
-  is_element_hidden(el, "Remove button is not visible.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "disable-btn");
-  is_element_hidden(el, "Disable button is not visible.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "enable-btn");
-  is_element_hidden(el, "Enable button is not visible.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "preferences-btn");
-  is_element_hidden(el, "Preferences button is not visible.");
-});
-
-add_task(function testActivateRealExperiments() {
-  if (!gExperiments) {
-    info("Skipping experiments test because that feature isn't available.");
-    return;
-  }
-
-  yield gExperiments._updateExperiments({
-    "version": 1,
-    "experiments": [
-      {
-        id: "experiment-2",
-        xpiURL: TESTROOT + "addons/browser_experiment1.xpi",
-        xpiHash: "IRRELEVANT",
-        startTime: Date.now() / 1000 - 3600,
-        endTime: Date.now() / 1000 + 3600,
-        maxActiveSeconds: 600,
-        appName: [Services.appinfo.name],
-        channel: [gExperiments._policy.updatechannel()],
-      },
-    ],
-  });
-  yield gExperiments._run();
-
-  // Check the active experiment.
-
-  let item = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
-  Assert.ok(item, "Got add-on element.");
-  item.parentNode.ensureElementIsVisible(item);
-
-  let el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-state");
-  is_element_visible(el, "Experiment state label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Active");
-  }
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-time");
-  is_element_visible(el, "Experiment time label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Less than a day remaining");
-  }
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "error-container");
-  is_element_hidden(el, "error-container should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "warning-container");
-  is_element_hidden(el, "warning-container should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "pending-container");
-  is_element_hidden(el, "pending-container should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "version");
-  is_element_hidden(el, "version should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "disabled-postfix");
-  is_element_hidden(el, "disabled-postfix should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "update-postfix");
-  is_element_hidden(el, "update-postfix should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "experiment-bullet");
-  is_element_visible(el, "experiment-bullet should be visible.");
-
-  // Check the previous experiment.
-
-  item = get_addon_element(gManagerWindow, "experiment-1");
-  Assert.ok(item, "Got add-on element.");
-  item.parentNode.ensureElementIsVisible(item);
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-state");
-  is_element_visible(el, "Experiment state label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Complete");
-  }
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-time");
-  is_element_visible(el, "Experiment time label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Less than a day ago");
-  }
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "error-container");
-  is_element_hidden(el, "error-container should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "warning-container");
-  is_element_hidden(el, "warning-container should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "pending-container");
-  is_element_hidden(el, "pending-container should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "version");
-  is_element_hidden(el, "version should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "disabled-postfix");
-  is_element_hidden(el, "disabled-postfix should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "update-postfix");
-  is_element_hidden(el, "update-postfix should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "experiment-bullet");
-  is_element_visible(el, "experiment-bullet should be visible.");
-
-  // Install an "older" experiment.
-
-  yield gExperiments.disableExperiment("experiment-2");
-
-  let now = Date.now();
-  let fakeNow = now - 5 * MS_IN_ONE_DAY;
-  defineNow(gExperiments._policy, fakeNow);
-
-  yield gExperiments._updateExperiments({
-    "version": 1,
-    "experiments": [
-      {
-        id: "experiment-3",
-        xpiURL: TESTROOT + "addons/browser_experiment1.xpi",
-        xpiHash: "IRRELEVANT",
-        startTime: fakeNow / 1000 - SEC_IN_ONE_DAY,
-        endTime: now / 1000 + 10 * SEC_IN_ONE_DAY,
-        maxActiveSeconds: 100 * SEC_IN_ONE_DAY,
-        appName: [Services.appinfo.name],
-        channel: [gExperiments._policy.updatechannel()],
-      },
-    ],
-  });
-  yield gExperiments._run();
-
-  // Check the active experiment.
-
-  item = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
-  Assert.ok(item, "Got add-on element.");
-  item.parentNode.ensureElementIsVisible(item);
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-state");
-  is_element_visible(el, "Experiment state label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Active");
-  }
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-time");
-  is_element_visible(el, "Experiment time label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "10 days remaining");
-  }
-
-  // Disable it and check it's previous experiment entry.
-
-  yield gExperiments.disableExperiment("experiment-3");
-
-  item = get_addon_element(gManagerWindow, "experiment-3");
-  Assert.ok(item, "Got add-on element.");
-  item.parentNode.ensureElementIsVisible(item);
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-state");
-  is_element_visible(el, "Experiment state label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Complete");
-  }
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-time");
-  is_element_visible(el, "Experiment time label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "5 days ago");
-  }
-});
-
-add_task(function testDetailView() {
-  if (!gExperiments) {
-    info("Skipping experiments test because that feature isn't available.");
-    return;
-  }
-
-  defineNow(gExperiments._policy, Date.now());
-  yield gExperiments._updateExperiments({
-    "version": 1,
-    "experiments": [
-      {
-        id: "experiment-4",
-        xpiURL: TESTROOT + "addons/browser_experiment1.xpi",
-        xpiHash: "IRRELEVANT",
-        startTime: Date.now() / 1000 - 3600,
-        endTime: Date.now() / 1000 + 3600,
-        maxActiveSeconds: 600,
-        appName: [Services.appinfo.name],
-        channel: [gExperiments._policy.updatechannel()],
-      },
-    ],
-  });
-  yield gExperiments._run();
-
-  // Check active experiment.
-
-  yield openDetailsView("test-experiment1@experiments.mozilla.org");
-
-  let el = gManagerWindow.document.getElementById("detail-experiment-state");
-  is_element_visible(el, "Experiment state label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Active");
-  }
-
-  el = gManagerWindow.document.getElementById("detail-experiment-time");
-  is_element_visible(el, "Experiment time label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Less than a day remaining");
-  }
-
-  el = gManagerWindow.document.getElementById("detail-version");
-  is_element_hidden(el, "detail-version should be hidden.");
-  el = gManagerWindow.document.getElementById("detail-creator");
-  is_element_hidden(el, "detail-creator should be hidden.");
-  el = gManagerWindow.document.getElementById("detail-experiment-bullet");
-  is_element_visible(el, "experiment-bullet should be visible.");
-
-  // Check previous experiment.
-
-  yield gCategoryUtilities.openType("experiment");
-  yield openDetailsView("experiment-3");
-
-  el = gManagerWindow.document.getElementById("detail-experiment-state");
-  is_element_visible(el, "Experiment state label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Complete");
-  }
-
-  el = gManagerWindow.document.getElementById("detail-experiment-time");
-  is_element_visible(el, "Experiment time label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "5 days ago");
-  }
-
-  el = gManagerWindow.document.getElementById("detail-version");
-  is_element_hidden(el, "detail-version should be hidden.");
-  el = gManagerWindow.document.getElementById("detail-creator");
-  is_element_hidden(el, "detail-creator should be hidden.");
-  el = gManagerWindow.document.getElementById("detail-experiment-bullet");
-  is_element_visible(el, "experiment-bullet should be visible.");
-});
-
-add_task(function* testRemoveAndUndo() {
-  if (!gExperiments) {
-    info("Skipping experiments test because that feature isn't available.");
-    return;
-  }
-
-  yield gCategoryUtilities.openType("experiment");
-
-  let addon = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
-  Assert.ok(addon, "Got add-on element.");
-
-  yield clickRemoveButton(addon);
-  addon.parentNode.ensureElementIsVisible(addon);
-
-  let el = gManagerWindow.document.getAnonymousElementByAttribute(addon, "class", "pending");
-  is_element_visible(el, "Uninstall undo information should be visible.");
-
-  yield clickUndoButton(addon);
-  addon = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
-  Assert.ok(addon, "Got add-on element.");
-});
-
-add_task(function* testCleanup() {
-  if (gExperiments) {
-    Services.prefs.clearUserPref("experiments.enabled");
-    Services.prefs.setCharPref("experiments.manifest.uri", gSavedManifestURI);
-
-    // We perform the uninit/init cycle to purge any leftover state.
-    yield OS.File.remove(gExperiments._cacheFilePath);
-    yield gExperiments.uninit();
-    yield gExperiments.init();
-  }
-
-  // Check post-conditions.
-  let addons = yield getExperimentAddons();
-  Assert.equal(addons.length, 0, "No experiment add-ons are installed.");
-
-  yield close_manager(gManagerWindow);
-});
diff --git a/toolkit/mozapps/webextensions/content/extensions.js b/toolkit/mozapps/webextensions/content/extensions.js
index 5e428fe17..3159eb1e1 100644
--- a/toolkit/mozapps/webextensions/content/extensions.js
+++ b/toolkit/mozapps/webextensions/content/extensions.js
@@ -29,9 +29,6 @@ XPCOMUtils.defineLazyModuleGetter(this, "PluralForm",
 XPCOMUtils.defineLazyModuleGetter(this, "Preferences",
                                   "resource://gre/modules/Preferences.jsm");
 
-XPCOMUtils.defineLazyModuleGetter(this, "Experiments",
-  "resource:///modules/experiments/Experiments.jsm");
-
 const PREF_DISCOVERURL = "extensions.webservice.discoverURL";
 const PREF_DISCOVER_ENABLED = "extensions.getAddons.showPane";
 const PREF_XPI_ENABLED = "xpinstall.enabled";
@@ -297,23 +294,6 @@ function isDiscoverEnabled() {
   return true;
 }
 
-function getExperimentEndDate(aAddon) {
-  if (!("@mozilla.org/browser/experiments-service;1" in Cc)) {
-    return 0;
-  }
-
-  if (!aAddon.isActive) {
-    return aAddon.endDate;
-  }
-
-  let experiment = Experiments.instance().getActiveExperiment();
-  if (!experiment) {
-    return 0;
-  }
-
-  return experiment.endDate;
-}
-
 /**
  * Obtain the main DOMWindow for the current context.
  */
@@ -1444,27 +1424,6 @@ var gViewController = {
       }
     },
 
-    cmd_experimentsLearnMore: {
-      isEnabled: function() {
-        let mainWindow = getMainWindow();
-        return mainWindow && "switchToTabHavingURI" in mainWindow;
-      },
-      doCommand: function() {
-        let url = Services.prefs.getCharPref("toolkit.telemetry.infoURL");
-        openOptionsInTab(url);
-      },
-    },
-
-    cmd_experimentsOpenTelemetryPreferences: {
-      isEnabled: function() {
-        return !!getMainWindowWithPreferencesPane();
-      },
-      doCommand: function() {
-        let mainWindow = getMainWindowWithPreferencesPane();
-        mainWindow.openAdvancedPreferences("dataChoicesTab");
-      },
-    },
-
     cmd_showUnsignedExtensions: {
       isEnabled: function() {
         return true;
@@ -1577,10 +1536,6 @@ function shouldShowVersionNumber(aAddon) {
   if (!aAddon.version)
     return false;
 
-  // The version number is hidden for experiments.
-  if (aAddon.type == "experiment")
-    return false;
-
   // The version number is hidden for lightweight themes.
   if (aAddon.type == "theme")
     return !/@personas\.mozilla\.org$/.test(aAddon.id);
@@ -1614,10 +1569,6 @@ function createItem(aObj, aIsInstall, aIsRemote) {
   // the binding handles the rest
   item.setAttribute("value", aObj.id);
 
-  if (aObj.type == "experiment") {
-    item.endDate = getExperimentEndDate(aObj);
-  }
-
   return item;
 }
 
@@ -2861,13 +2812,6 @@ var gListView = {
     // the existing item
     if (aInstall.existingAddon)
       this.removeItem(aInstall, true);
-
-    if (aInstall.addon.type == "experiment") {
-      let item = this.getListItemForID(aInstall.addon.id);
-      if (item) {
-        item.endDate = getExperimentEndDate(aInstall.addon);
-      }
-    }
   },
 
   addItem: function(aObj, aIsInstall) {
@@ -3126,34 +3070,6 @@ var gDetailView = {
       }
     }
 
-    if (this._addon.type == "experiment") {
-      let prefix = "details.experiment.";
-      let active = this._addon.isActive;
-
-      let stateKey = prefix + "state." + (active ? "active" : "complete");
-      let node = document.getElementById("detail-experiment-state");
-      node.value = gStrings.ext.GetStringFromName(stateKey);
-
-      let now = Date.now();
-      let end = getExperimentEndDate(this._addon);
-      let days = Math.abs(end - now) / (24 * 60 * 60 * 1000);
-
-      let timeKey = prefix + "time.";
-      let timeMessage;
-      if (days < 1) {
-        timeKey += (active ? "endsToday" : "endedToday");
-        timeMessage = gStrings.ext.GetStringFromName(timeKey);
-      } else {
-        timeKey += (active ? "daysRemaining" : "daysPassed");
-        days = Math.round(days);
-        let timeString = gStrings.ext.GetStringFromName(timeKey);
-        timeMessage = PluralForm.get(days, timeString)
-                                .replace("#1", days);
-      }
-
-      document.getElementById("detail-experiment-time").value = timeMessage;
-    }
-
     this.fillSettingsRows(aScrollToPreferences, (function() {
       this.updateState();
       gViewController.notifyViewChanged();
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_experiments.js b/toolkit/mozapps/webextensions/test/browser/browser_experiments.js
deleted file mode 100644
index 18a548de5..000000000
--- a/toolkit/mozapps/webextensions/test/browser/browser_experiments.js
+++ /dev/null
@@ -1,654 +0,0 @@
-/* Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/publicdomain/zero/1.0/
- */
-
-Components.utils.import("resource://gre/modules/Promise.jsm", this);
-
-var {AddonManagerTesting} = Components.utils.import("resource://testing-common/AddonManagerTesting.jsm", {});
-var {HttpServer} = Components.utils.import("resource://testing-common/httpd.js", {});
-
-var gManagerWindow;
-var gCategoryUtilities;
-var gExperiments;
-var gHttpServer;
-
-var gSavedManifestURI;
-var gIsEnUsLocale;
-
-const SEC_IN_ONE_DAY = 24 * 60 * 60;
-const MS_IN_ONE_DAY  = SEC_IN_ONE_DAY * 1000;
-
-function getExperimentAddons() {
-  let deferred = Promise.defer();
-  AddonManager.getAddonsByTypes(["experiment"], (addons) => {
-    deferred.resolve(addons);
-  });
-  return deferred.promise;
-}
-
-function getInstallItem() {
-  let doc = gManagerWindow.document;
-  let view = get_current_view(gManagerWindow);
-  let list = doc.getElementById("addon-list");
-
-  let node = list.firstChild;
-  while (node) {
-    if (node.getAttribute("status") == "installing") {
-      return node;
-    }
-    node = node.nextSibling;
-  }
-
-  return null;
-}
-
-function patchPolicy(policy, data) {
-  for (let key of Object.keys(data)) {
-    Object.defineProperty(policy, key, {
-      value: data[key],
-      writable: true,
-    });
-  }
-}
-
-function defineNow(policy, time) {
-  patchPolicy(policy, { now: () => new Date(time) });
-}
-
-function openDetailsView(aId) {
-  let item = get_addon_element(gManagerWindow, aId);
-  Assert.ok(item, "Should have got add-on element.");
-  is_element_visible(item, "Add-on element should be visible.");
-
-  EventUtils.synthesizeMouseAtCenter(item, { clickCount: 1 }, gManagerWindow);
-  EventUtils.synthesizeMouseAtCenter(item, { clickCount: 2 }, gManagerWindow);
-
-  let deferred = Promise.defer();
-  wait_for_view_load(gManagerWindow, deferred.resolve);
-  return deferred.promise;
-}
-
-function clickRemoveButton(addonElement) {
-  let btn = gManagerWindow.document.getAnonymousElementByAttribute(addonElement, "anonid", "remove-btn");
-  if (!btn) {
-    return Promise.reject();
-  }
-
-  EventUtils.synthesizeMouseAtCenter(btn, { clickCount: 1 }, gManagerWindow);
-  let deferred = Promise.defer();
-  setTimeout(deferred.resolve, 0);
-  return deferred;
-}
-
-function clickUndoButton(addonElement) {
-  let btn = gManagerWindow.document.getAnonymousElementByAttribute(addonElement, "anonid", "undo-btn");
-  if (!btn) {
-    return Promise.reject();
-  }
-
-  EventUtils.synthesizeMouseAtCenter(btn, { clickCount: 1 }, gManagerWindow);
-  let deferred = Promise.defer();
-  setTimeout(deferred.resolve, 0);
-  return deferred;
-}
-
-add_task(function* initializeState() {
-  gManagerWindow = yield open_manager();
-  gCategoryUtilities = new CategoryUtilities(gManagerWindow);
-
-  registerCleanupFunction(() => {
-    Services.prefs.clearUserPref("experiments.enabled");
-    Services.prefs.clearUserPref("toolkit.telemetry.enabled");
-    if (gHttpServer) {
-      gHttpServer.stop(() => {});
-      if (gSavedManifestURI !== undefined) {
-        Services.prefs.setCharPref("experments.manifest.uri", gSavedManifestURI);
-      }
-    }
-    if (gExperiments) {
-      let tmp = {};
-      Cu.import("resource:///modules/experiments/Experiments.jsm", tmp);
-      gExperiments._policy = new tmp.Experiments.Policy();
-    }
-  });
-
-  let chrome = Cc["@mozilla.org/chrome/chrome-registry;1"].getService(Ci.nsIXULChromeRegistry);
-  gIsEnUsLocale = chrome.getSelectedLocale("global") == "en-US";
-
-  // The Experiments Manager will interfere with us by preventing installs
-  // of experiments it doesn't know about. We remove it from the equation
-  // because here we are only concerned with core Addon Manager operation,
-  // not the superset Experiments Manager has imposed.
-  if ("@mozilla.org/browser/experiments-service;1" in Components.classes) {
-    let tmp = {};
-    Cu.import("resource:///modules/experiments/Experiments.jsm", tmp);
-    // There is a race condition between XPCOM service initialization and
-    // this test running. We have to initialize the instance first, then
-    // uninitialize it to prevent this.
-    gExperiments = tmp.Experiments.instance();
-    yield gExperiments._mainTask;
-    yield gExperiments.uninit();
-  }
-});
-
-// On an empty profile with no experiments, the experiment category
-// should be hidden.
-add_task(function* testInitialState() {
-  Assert.ok(gCategoryUtilities.get("experiment", false), "Experiment tab is defined.");
-  Assert.ok(!gCategoryUtilities.isTypeVisible("experiment"), "Experiment tab hidden by default.");
-});
-
-add_task(function* testExperimentInfoNotVisible() {
-  yield gCategoryUtilities.openType("extension");
-  let el = gManagerWindow.document.getElementsByClassName("experiment-info-container")[0];
-  is_element_hidden(el, "Experiment info not visible on other types.");
-});
-
-// If we have an active experiment, we should see the experiments tab
-// and that tab should have some messages.
-add_task(function* testActiveExperiment() {
-  let addon = yield install_addon("addons/browser_experiment1.xpi");
-
-  Assert.ok(addon.userDisabled, "Add-on is disabled upon initial install.");
-  Assert.equal(addon.isActive, false, "Add-on is not active.");
-
-  Assert.ok(gCategoryUtilities.isTypeVisible("experiment"), "Experiment tab visible.");
-
-  yield gCategoryUtilities.openType("experiment");
-  let el = gManagerWindow.document.getElementsByClassName("experiment-info-container")[0];
-  is_element_visible(el, "Experiment info is visible on experiment tab.");
-});
-
-add_task(function* testExperimentLearnMore() {
-  // Actual URL is irrelevant.
-  Services.prefs.setCharPref("toolkit.telemetry.infoURL",
-                             "http://mochi.test:8888/server.js");
-
-  yield gCategoryUtilities.openType("experiment");
-  let btn = gManagerWindow.document.getElementById("experiments-learn-more");
-
-  if (!gUseInContentUI) {
-    is_element_hidden(btn, "Learn more button hidden if not using in-content UI.");
-    Services.prefs.clearUserPref("toolkit.telemetry.infoURL");
-
-    return;
-  }
-
-  is_element_visible(btn, "Learn more button visible.");
-
-  let deferred = Promise.defer();
-  window.addEventListener("DOMContentLoaded", function onLoad(event) {
-    info("Telemetry privacy policy window opened.");
-    window.removeEventListener("DOMContentLoaded", onLoad, false);
-
-    let browser = gBrowser.selectedBrowser;
-    let expected = Services.prefs.getCharPref("toolkit.telemetry.infoURL");
-    Assert.equal(browser.currentURI.spec, expected, "New tab should have loaded privacy policy.");
-    browser.contentWindow.close();
-
-    Services.prefs.clearUserPref("toolkit.telemetry.infoURL");
-
-    deferred.resolve();
-  }, false);
-
-  info("Opening telemetry privacy policy.");
-  EventUtils.synthesizeMouseAtCenter(btn, {}, gManagerWindow);
-
-  yield deferred.promise;
-});
-
-add_task(function* testOpenPreferences() {
-  yield gCategoryUtilities.openType("experiment");
-  let btn = gManagerWindow.document.getElementById("experiments-change-telemetry");
-  if (!gUseInContentUI) {
-    is_element_hidden(btn, "Change telemetry button not enabled in out of window UI.");
-    info("Skipping preferences open test because not using in-content UI.");
-    return;
-  }
-
-  is_element_visible(btn, "Change telemetry button visible in in-content UI.");
-
-  let deferred = Promise.defer();
-  Services.obs.addObserver(function observer(prefWin, topic, data) {
-    Services.obs.removeObserver(observer, "advanced-pane-loaded");
-    info("Advanced preference pane opened.");
-    executeSoon(function() {
-      // We want this test to fail if the preferences pane changes.
-      let el = prefWin.document.getElementById("dataChoicesPanel");
-      is_element_visible(el);
-
-      prefWin.close();
-      info("Closed preferences pane.");
-
-      deferred.resolve();
-    });
-  }, "advanced-pane-loaded", false);
-
-  info("Loading preferences pane.");
-  // We need to focus before synthesizing the mouse event (bug 1240052) as
-  // synthesizeMouseAtCenter currently only synthesizes the mouse in the child process.
-  // This can cause some subtle differences if the child isn't focused.
-  yield SimpleTest.promiseFocus();
-  yield BrowserTestUtils.synthesizeMouseAtCenter("#experiments-change-telemetry", {},
-                                                 gBrowser.selectedBrowser);
-
-  yield deferred.promise;
-});
-
-add_task(function* testButtonPresence() {
-  yield gCategoryUtilities.openType("experiment");
-  let item = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
-  Assert.ok(item, "Got add-on element.");
-  item.parentNode.ensureElementIsVisible(item);
-
-  let el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
-  // Corresponds to the uninstall permission.
-  is_element_visible(el, "Remove button is visible.");
-  // Corresponds to lack of disable permission.
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "disable-btn");
-  is_element_hidden(el, "Disable button not visible.");
-  // Corresponds to lack of enable permission.
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "enable-btn");
-  is_element_hidden(el, "Enable button not visible.");
-});
-
-// Remove the add-on we've been testing with.
-add_task(function* testCleanup() {
-  yield AddonManagerTesting.uninstallAddonByID("test-experiment1@experiments.mozilla.org");
-  // Verify some conditions, just in case.
-  let addons = yield getExperimentAddons();
-  Assert.equal(addons.length, 0, "No experiment add-ons are installed.");
-});
-
-// The following tests should ideally live in browser/experiments/. However,
-// they rely on some of the helper functions from head.js, which can't easily
-// be consumed from other directories. So, they live here.
-
-add_task(function* testActivateExperiment() {
-  if (!gExperiments) {
-    info("Skipping experiments test because that feature isn't available.");
-    return;
-  }
-
-  gHttpServer = new HttpServer();
-  gHttpServer.start(-1);
-  let root = "http://localhost:" + gHttpServer.identity.primaryPort + "/";
-  gHttpServer.registerPathHandler("/manifest", (request, response) => {
-    response.setStatusLine(null, 200, "OK");
-    response.write(JSON.stringify({
-      "version": 1,
-      "experiments": [
-        {
-          id: "experiment-1",
-          xpiURL: TESTROOT + "addons/browser_experiment1.xpi",
-          xpiHash: "IRRELEVANT",
-          startTime: Date.now() / 1000 - 3600,
-          endTime: Date.now() / 1000 + 3600,
-          maxActiveSeconds: 600,
-          appName: [Services.appinfo.name],
-          channel: [gExperiments._policy.updatechannel()],
-        },
-      ],
-    }));
-    response.processAsync();
-    response.finish();
-  });
-
-  gSavedManifestURI = Services.prefs.getCharPref("experiments.manifest.uri");
-  Services.prefs.setCharPref("experiments.manifest.uri", root + "manifest");
-
-  // We need to remove the cache file to help ensure consistent state.
-  yield OS.File.remove(gExperiments._cacheFilePath);
-
-  Services.prefs.setBoolPref("toolkit.telemetry.enabled", true);
-  Services.prefs.setBoolPref("experiments.enabled", true);
-
-  info("Initializing experiments service.");
-  yield gExperiments.init();
-  info("Experiments service finished first run.");
-
-  // Check conditions, just to be sure.
-  let experiments = yield gExperiments.getExperiments();
-  Assert.equal(experiments.length, 0, "No experiments known to the service.");
-
-  // This makes testing easier.
-  gExperiments._policy.ignoreHashes = true;
-
-  info("Manually updating experiments manifest.");
-  yield gExperiments.updateManifest();
-  info("Experiments update complete.");
-
-  let deferred = Promise.defer();
-  gHttpServer.stop(() => {
-    gHttpServer = null;
-
-    info("getting experiment by ID");
-    AddonManager.getAddonByID("test-experiment1@experiments.mozilla.org", (addon) => {
-      Assert.ok(addon, "Add-on installed via Experiments manager.");
-
-      deferred.resolve();
-    });
-  });
-
-  yield deferred.promise;
-
-  Assert.ok(gCategoryUtilities.isTypeVisible, "experiment", "Experiment tab visible.");
-  yield gCategoryUtilities.openType("experiment");
-  let el = gManagerWindow.document.getElementsByClassName("experiment-info-container")[0];
-  is_element_visible(el, "Experiment info is visible on experiment tab.");
-});
-
-add_task(function* testDeactivateExperiment() {
-  if (!gExperiments) {
-    return;
-  }
-
-  // Fake an empty manifest to purge data from previous manifest.
-  yield gExperiments._updateExperiments({
-    "version": 1,
-    "experiments": [],
-  });
-
-  yield gExperiments.disableExperiment("testing");
-
-  // We should have a record of the previously-active experiment.
-  let experiments = yield gExperiments.getExperiments();
-  Assert.equal(experiments.length, 1, "1 experiment is known.");
-  Assert.equal(experiments[0].active, false, "Experiment is not active.");
-
-  // We should have a previous experiment in the add-ons manager.
-  let deferred = Promise.defer();
-  AddonManager.getAddonsByTypes(["experiment"], (addons) => {
-    deferred.resolve(addons);
-  });
-  let addons = yield deferred.promise;
-  Assert.equal(addons.length, 1, "1 experiment add-on known.");
-  Assert.ok(addons[0].appDisabled, "It is a previous experiment.");
-  Assert.equal(addons[0].id, "experiment-1", "Add-on ID matches expected.");
-
-  // Verify the UI looks sane.
-
-  Assert.ok(gCategoryUtilities.isTypeVisible("experiment"), "Experiment tab visible.");
-  let item = get_addon_element(gManagerWindow, "experiment-1");
-  Assert.ok(item, "Got add-on element.");
-  Assert.ok(!item.active, "Element should not be active.");
-  item.parentNode.ensureElementIsVisible(item);
-
-  // User control buttons should not be present because previous experiments
-  // should have no permissions.
-  let el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
-  is_element_hidden(el, "Remove button is not visible.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "disable-btn");
-  is_element_hidden(el, "Disable button is not visible.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "enable-btn");
-  is_element_hidden(el, "Enable button is not visible.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "preferences-btn");
-  is_element_hidden(el, "Preferences button is not visible.");
-});
-
-add_task(function* testActivateRealExperiments() {
-  if (!gExperiments) {
-    info("Skipping experiments test because that feature isn't available.");
-    return;
-  }
-
-  yield gExperiments._updateExperiments({
-    "version": 1,
-    "experiments": [
-      {
-        id: "experiment-2",
-        xpiURL: TESTROOT + "addons/browser_experiment1.xpi",
-        xpiHash: "IRRELEVANT",
-        startTime: Date.now() / 1000 - 3600,
-        endTime: Date.now() / 1000 + 3600,
-        maxActiveSeconds: 600,
-        appName: [Services.appinfo.name],
-        channel: [gExperiments._policy.updatechannel()],
-      },
-    ],
-  });
-  yield gExperiments._run();
-
-  // Check the active experiment.
-
-  let item = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
-  Assert.ok(item, "Got add-on element.");
-  item.parentNode.ensureElementIsVisible(item);
-
-  let el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-state");
-  is_element_visible(el, "Experiment state label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Active");
-  }
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-time");
-  is_element_visible(el, "Experiment time label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Less than a day remaining");
-  }
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "error-container");
-  is_element_hidden(el, "error-container should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "warning-container");
-  is_element_hidden(el, "warning-container should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "pending-container");
-  is_element_hidden(el, "pending-container should be hidden.");
-  let { version } = yield get_tooltip_info(item);
-  Assert.equal(version, undefined, "version should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "disabled-postfix");
-  is_element_hidden(el, "disabled-postfix should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "update-postfix");
-  is_element_hidden(el, "update-postfix should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "experiment-bullet");
-  is_element_visible(el, "experiment-bullet should be visible.");
-
-  // Check the previous experiment.
-
-  item = get_addon_element(gManagerWindow, "experiment-1");
-  Assert.ok(item, "Got add-on element.");
-  item.parentNode.ensureElementIsVisible(item);
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-state");
-  is_element_visible(el, "Experiment state label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Complete");
-  }
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-time");
-  is_element_visible(el, "Experiment time label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Less than a day ago");
-  }
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "error-container");
-  is_element_hidden(el, "error-container should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "warning-container");
-  is_element_hidden(el, "warning-container should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "pending-container");
-  is_element_hidden(el, "pending-container should be hidden.");
-  ({ version } = yield get_tooltip_info(item));
-  Assert.equal(version, undefined, "version should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "disabled-postfix");
-  is_element_hidden(el, "disabled-postfix should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "update-postfix");
-  is_element_hidden(el, "update-postfix should be hidden.");
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "experiment-bullet");
-  is_element_visible(el, "experiment-bullet should be visible.");
-
-  // Install an "older" experiment.
-
-  yield gExperiments.disableExperiment("experiment-2");
-
-  let now = Date.now();
-  let fakeNow = now - 5 * MS_IN_ONE_DAY;
-  defineNow(gExperiments._policy, fakeNow);
-
-  yield gExperiments._updateExperiments({
-    "version": 1,
-    "experiments": [
-      {
-        id: "experiment-3",
-        xpiURL: TESTROOT + "addons/browser_experiment1.xpi",
-        xpiHash: "IRRELEVANT",
-        startTime: fakeNow / 1000 - SEC_IN_ONE_DAY,
-        endTime: now / 1000 + 10 * SEC_IN_ONE_DAY,
-        maxActiveSeconds: 100 * SEC_IN_ONE_DAY,
-        appName: [Services.appinfo.name],
-        channel: [gExperiments._policy.updatechannel()],
-      },
-    ],
-  });
-  yield gExperiments._run();
-
-  // Check the active experiment.
-
-  item = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
-  Assert.ok(item, "Got add-on element.");
-  item.parentNode.ensureElementIsVisible(item);
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-state");
-  is_element_visible(el, "Experiment state label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Active");
-  }
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-time");
-  is_element_visible(el, "Experiment time label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "10 days remaining");
-  }
-
-  // Disable it and check it's previous experiment entry.
-
-  yield gExperiments.disableExperiment("experiment-3");
-
-  item = get_addon_element(gManagerWindow, "experiment-3");
-  Assert.ok(item, "Got add-on element.");
-  item.parentNode.ensureElementIsVisible(item);
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-state");
-  is_element_visible(el, "Experiment state label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Complete");
-  }
-
-  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-time");
-  is_element_visible(el, "Experiment time label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "5 days ago");
-  }
-});
-
-add_task(function* testDetailView() {
-  if (!gExperiments) {
-    info("Skipping experiments test because that feature isn't available.");
-    return;
-  }
-
-  defineNow(gExperiments._policy, Date.now());
-  yield gExperiments._updateExperiments({
-    "version": 1,
-    "experiments": [
-      {
-        id: "experiment-4",
-        xpiURL: TESTROOT + "addons/browser_experiment1.xpi",
-        xpiHash: "IRRELEVANT",
-        startTime: Date.now() / 1000 - 3600,
-        endTime: Date.now() / 1000 + 3600,
-        maxActiveSeconds: 600,
-        appName: [Services.appinfo.name],
-        channel: [gExperiments._policy.updatechannel()],
-      },
-    ],
-  });
-  yield gExperiments._run();
-
-  // Check active experiment.
-
-  yield openDetailsView("test-experiment1@experiments.mozilla.org");
-
-  let el = gManagerWindow.document.getElementById("detail-experiment-state");
-  is_element_visible(el, "Experiment state label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Active");
-  }
-
-  el = gManagerWindow.document.getElementById("detail-experiment-time");
-  is_element_visible(el, "Experiment time label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Less than a day remaining");
-  }
-
-  el = gManagerWindow.document.getElementById("detail-version");
-  is_element_hidden(el, "detail-version should be hidden.");
-  el = gManagerWindow.document.getElementById("detail-creator");
-  is_element_hidden(el, "detail-creator should be hidden.");
-  el = gManagerWindow.document.getElementById("detail-experiment-bullet");
-  is_element_visible(el, "experiment-bullet should be visible.");
-
-  // Check previous experiment.
-
-  yield gCategoryUtilities.openType("experiment");
-  yield openDetailsView("experiment-3");
-
-  el = gManagerWindow.document.getElementById("detail-experiment-state");
-  is_element_visible(el, "Experiment state label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "Complete");
-  }
-
-  el = gManagerWindow.document.getElementById("detail-experiment-time");
-  is_element_visible(el, "Experiment time label should be visible.");
-  if (gIsEnUsLocale) {
-    Assert.equal(el.value, "5 days ago");
-  }
-
-  el = gManagerWindow.document.getElementById("detail-version");
-  is_element_hidden(el, "detail-version should be hidden.");
-  el = gManagerWindow.document.getElementById("detail-creator");
-  is_element_hidden(el, "detail-creator should be hidden.");
-  el = gManagerWindow.document.getElementById("detail-experiment-bullet");
-  is_element_visible(el, "experiment-bullet should be visible.");
-});
-
-add_task(function* testRemoveAndUndo() {
-  if (!gExperiments) {
-    info("Skipping experiments test because that feature isn't available.");
-    return;
-  }
-
-  yield gCategoryUtilities.openType("experiment");
-
-  let addon = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
-  Assert.ok(addon, "Got add-on element.");
-
-  yield clickRemoveButton(addon);
-  addon.parentNode.ensureElementIsVisible(addon);
-
-  let el = gManagerWindow.document.getAnonymousElementByAttribute(addon, "class", "pending");
-  is_element_visible(el, "Uninstall undo information should be visible.");
-
-  yield clickUndoButton(addon);
-  addon = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
-  Assert.ok(addon, "Got add-on element.");
-});
-
-add_task(function* testCleanup() {
-  if (gExperiments) {
-    Services.prefs.clearUserPref("experiments.enabled");
-    Services.prefs.setCharPref("experiments.manifest.uri", gSavedManifestURI);
-
-    // We perform the uninit/init cycle to purge any leftover state.
-    yield OS.File.remove(gExperiments._cacheFilePath);
-    yield gExperiments.uninit();
-    yield gExperiments.init();
-
-    Services.prefs.clearUserPref("toolkit.telemetry.enabled");
-  }
-
-  // Check post-conditions.
-  let addons = yield getExperimentAddons();
-  Assert.equal(addons.length, 0, "No experiment add-ons are installed.");
-
-  yield close_manager(gManagerWindow);
-});