Refactor the Photo Editor to enable new feature work

chrome/browser/resources/file_manager/js/mock_chrome.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 function MockEventSource() {
   this.listeners_ = [];
 }
 
 /**
  * Add a listener.
@@ skipping 109 matching lines @@
   removeFileWatch: function(path, callback) { callback(true) },
 
   /**
    * Returns common tasks for a given list of files.
    * @return {Array.<Object>} Array of task descriptors.
    */
   getFileTasks: function(urlList, callback) {
     if (urlList.length == 0)
       return callback([]);
 
-    // This is how File Manager gets the extension id.
-    var extensionId = chrome.extension.getURL('').split('/')[2];
+    var extensionId = util.getExtensionId();
 
     if (!callback)
       throw new Error('Missing callback');
 
     var emptyIcon = 'data:image/gif;base64,' +
         'R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw%3D%3D';
 
     var tasks = [
       { taskId: extensionId + '|play',
         title: 'Listen',
         regexp: /\.(flac|m4a|mp3|oga|ogg|wav)$/i,
         iconUrl: emptyIcon
       },
       { taskId: extensionId + '|mount-archive',
         title: 'Mount',
         regexp: /\.(rar|tar|tar.bz2|tar.gz|tbz|tbz2|tgz|zip)$/i,
         iconUrl: emptyIcon
       },
       {
         taskId: extensionId + '|gallery',
         title: 'View',
         regexp: /\.(bmp|gif|jpe?g|png|webp|3gp|avi|m4v|mov|mp4|mpeg4?|mpg4?|ogm|ogv|ogx|webm)$/i,
         iconUrl: emptyIcon
       },
       {
         taskId: 'fake-extension-id|fake-item',
         title: 'External action',
         regexp: /\.(bmp|gif|jpe?g|png|webp|3gp|avi|m4v|mov|mp4|mpeg4?|mpg4?|ogm|ogv|ogx|webm)$/i,
-        iconUrl: 'images/icon16.png'
+        iconUrl: 'images/files/file_types/generic.png'
+      },
+      {
+        taskId: 'fake-extension-id|upload',
+        title: 'Upload video',
+        regexp: /\.(3gp|avi|m4v|mov|mp4|mpeg4?|mpg4?|ogm|ogv|ogx|webm)$/i,
+        iconUrl: 'images/files/file_types/video.png'
       },
       {
         taskId: extensionId + '|view-in-browser',
         title: 'View',
         regexp: /\.(html?|log|mht|mhtml|txt)$/i,
         iconUrl: emptyIcon
       },
       {
         taskId: extensionId + '|view-pdf',
         title: 'View',
@@ skipping 646 matching lines @@
 
   setWindowHeight: function(height) {
     this.popup_.style.height = height + 'px';
   },
 
   closeWindow: function() {
     this.popup_.parentNode.removeChild(this.popup_);
     this.popup_ = null;
   }
 };