1 files changed, 0 insertions, 125 deletions
diff --git a/mobile/android/components/ImageBlockingPolicy.js b/mobile/android/components/ImageBlockingPolicy.js
deleted file mode 100644
index 2444bda06..000000000
--- a/mobile/android/components/ImageBlockingPolicy.js
+++ /dev/null
@@ -1,125 +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/. */
-
-const { classes: Cc, interfaces: Ci, manager: Cm, utils: Cu, results: Cr } = Components;
-
-Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-Cu.import("resource://gre/modules/Timer.jsm");
-
-////////////////////////////////////////////////////////////////////////////////
-//// Constants
-
-//// SVG placeholder image for blocked image content
-const PLACEHOLDER_IMG = "chrome://browser/skin/images/placeholder_image.svg";
-
-//// Telemetry
-const TELEMETRY_TAP_TO_LOAD_ENABLED = "TAP_TO_LOAD_ENABLED";
-const TELEMETRY_SHOW_IMAGE_SIZE = "TAP_TO_LOAD_IMAGE_SIZE";
-const TOPIC_GATHER_TELEMETRY = "gather-telemetry";
-
-//// Gecko preference
-const PREF_IMAGEBLOCKING = "browser.image_blocking";
-
-//// Enabled options
-const OPTION_NEVER = 0;
-const OPTION_ALWAYS = 1;
-const OPTION_WIFI_ONLY = 2;
-
-
-/**
- * Content policy for blocking images
- */
-function ImageBlockingPolicy() {
-  Services.obs.addObserver(this, TOPIC_GATHER_TELEMETRY, false);
-}
-
-ImageBlockingPolicy.prototype = {
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentPolicy, Ci.nsIObserver]),
-  classDescription: "Click-To-Play Image",
-  classID: Components.ID("{f55f77f9-d33d-4759-82fc-60db3ee0bb91}"),
-  contractID: "@mozilla.org/browser/blockimages-policy;1",
-  xpcom_categories: [{category: "content-policy", service: true}],
-
-  // nsIContentPolicy interface implementation
-  shouldLoad: function(contentType, contentLocation, requestOrigin, node, mimeTypeGuess, extra) {
-    // When enabled or when on cellular, and option for cellular-only is selected
-    if (this._enabled() == OPTION_NEVER || (this._enabled() == OPTION_WIFI_ONLY && this._usingCellular())) {
-      if (contentType === Ci.nsIContentPolicy.TYPE_IMAGE || contentType === Ci.nsIContentPolicy.TYPE_IMAGESET) {
-        // Accept any non-http(s) image URLs
-        if (!contentLocation.schemeIs("http") && !contentLocation.schemeIs("https")) {
-          return Ci.nsIContentPolicy.ACCEPT;
-        }
-
-        if (node instanceof Ci.nsIDOMHTMLImageElement) {
-          // Accept if the user has asked to view the image
-          if (node.getAttribute("data-ctv-show") == "true") {
-            sendImageSizeTelemetry(node.getAttribute("data-ctv-src"));
-            return Ci.nsIContentPolicy.ACCEPT;
-          }
-
-          setTimeout(() => {
-            // Cache the original image URL and swap in our placeholder
-            node.setAttribute("data-ctv-src", contentLocation.spec);
-            node.setAttribute("src", PLACEHOLDER_IMG);
-
-            // For imageset (img + srcset) the "srcset" is used even after we reset the "src" causing a loop.
-            // We are given the final image URL anyway, so it's OK to just remove the "srcset" value.
-            node.removeAttribute("srcset");
-          }, 0);
-        }
-
-        // Reject any image that is not associated with a DOM element
-        return Ci.nsIContentPolicy.REJECT;
-      }
-    }
-
-    // Accept all other content types
-    return Ci.nsIContentPolicy.ACCEPT;
-  },
-
-  shouldProcess: function(contentType, contentLocation, requestOrigin, node, mimeTypeGuess, extra) {
-    return Ci.nsIContentPolicy.ACCEPT;
-  },
-
-  _usingCellular: function() {
-    let network = Cc["@mozilla.org/network/network-link-service;1"].getService(Ci.nsINetworkLinkService);
-    return !(network.linkType == Ci.nsINetworkLinkService.LINK_TYPE_UNKNOWN ||
-        network.linkType == Ci.nsINetworkLinkService.LINK_TYPE_ETHERNET ||
-        network.linkType == Ci.nsINetworkLinkService.LINK_TYPE_USB  ||
-        network.linkType == Ci.nsINetworkLinkService.LINK_TYPE_WIFI);
-  },
-
-  _enabled: function() {
-    return Services.prefs.getIntPref(PREF_IMAGEBLOCKING);
-  },
-
-  observe : function (subject, topic, data) {
-    if (topic == TOPIC_GATHER_TELEMETRY) {
-      Services.telemetry.getHistogramById(TELEMETRY_TAP_TO_LOAD_ENABLED).add(this._enabled());
-    }
-  },
-};
-
-function sendImageSizeTelemetry(imageURL) {
-  let xhr = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"].createInstance(Ci.nsIXMLHttpRequest);
-  xhr.open("HEAD", imageURL, true);
-  xhr.onreadystatechange = function (e) {
-    if (xhr.readyState != 4) {
-      return;
-    }
-    if (xhr.status != 200) {
-      return;
-    }
-    let contentLength = xhr.getResponseHeader("Content-Length");
-    if (!contentLength) {
-      return;
-    }
-    let imageSize = contentLength / 1024;
-    Services.telemetry.getHistogramById(TELEMETRY_SHOW_IMAGE_SIZE).add(imageSize);
-  };
-  xhr.send(null);
-}
-
-this.NSGetFactory = XPCOMUtils.generateNSGetFactory([ImageBlockingPolicy]);