1 files changed, 0 insertions, 88 deletions
diff --git a/mobile/android/chrome/content/MemoryObserver.js b/mobile/android/chrome/content/MemoryObserver.js
deleted file mode 100644
index 2bb3ae842..000000000
--- a/mobile/android/chrome/content/MemoryObserver.js
+++ /dev/null
@@ -1,88 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-"use strict";
-
-var MemoryObserver = {
-  observe: function mo_observe(aSubject, aTopic, aData) {
-    if (aTopic == "memory-pressure") {
-      if (aData != "heap-minimize") {
-        this.handleLowMemory();
-      }
-      // The JS engine would normally GC on this notification, but since we
-      // disabled that in favor of this method (bug 669346), we should gc here.
-      // See bug 784040 for when this code was ported from XUL to native Fennec.
-      this.gc();
-    } else if (aTopic == "Memory:Dump") {
-      this.dumpMemoryStats(aData);
-    }
-  },
-
-  handleLowMemory: function() {
-    // do things to reduce memory usage here
-    if (!Services.prefs.getBoolPref("browser.tabs.disableBackgroundZombification")) {
-      let tabs = BrowserApp.tabs;
-      let selected = BrowserApp.selectedTab;
-      for (let i = 0; i < tabs.length; i++) {
-        if (tabs[i] != selected && !tabs[i].playingAudio) {
-          this.zombify(tabs[i]);
-        }
-      }
-    }
-
-    // Change some preferences temporarily for only this session
-    let defaults = Services.prefs.getDefaultBranch(null);
-
-    // Reduce the amount of decoded image data we keep around
-    defaults.setIntPref("image.mem.max_decoded_image_kb", 0);
-
-    // Stop using the bfcache
-    if (!Services.prefs.getBoolPref("browser.sessionhistory.bfcacheIgnoreMemoryPressure")) {
-      defaults.setIntPref("browser.sessionhistory.max_total_viewers", 0);
-    }
-  },
-
-  zombify: function(tab) {
-    let browser = tab.browser;
-    let data = browser.__SS_data;
-    let extra = browser.__SS_extdata;
-
-    // Notify any interested parties (e.g. the session store)
-    // that the original tab object is going to be destroyed
-    let evt = document.createEvent("UIEvents");
-    evt.initUIEvent("TabPreZombify", true, false, window, null);
-    browser.dispatchEvent(evt);
-
-    // We need this data to correctly create and position the new browser
-    // If this browser is already a zombie, fallback to the session data
-    let currentURL = browser.__SS_restore ? data.entries[0].url : browser.currentURI.spec;
-    let sibling = browser.nextSibling;
-    let isPrivate = PrivateBrowsingUtils.isBrowserPrivate(browser);
-
-    tab.destroy();
-    tab.create(currentURL, { sibling: sibling, zombifying: true, delayLoad: true, isPrivate: isPrivate });
-
-    // Reattach session store data and flag this browser so it is restored on select
-    browser = tab.browser;
-    browser.__SS_data = data;
-    browser.__SS_extdata = extra;
-    browser.__SS_restore = true;
-    browser.setAttribute("pending", "true");
-
-    // Notify the session store to reattach its listeners to the new tab object
-    evt = document.createEvent("UIEvents");
-    evt.initUIEvent("TabPostZombify", true, false, window, null);
-    browser.dispatchEvent(evt);
-  },
-
-  gc: function() {
-    window.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils).garbageCollect();
-    Cu.forceGC();
-  },
-
-  dumpMemoryStats: function(aLabel) {
-    let memDumper = Cc["@mozilla.org/memory-info-dumper;1"].getService(Ci.nsIMemoryInfoDumper);
-    memDumper.dumpMemoryInfoToTempDir(aLabel, /* anonymize = */ false,
-                                      /* minimize = */ false);
-  },
-};