[File Manager] Support HiDPI images in action picker and default action picker

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 134 matching lines @@
       {
         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'
+        iconType: 'generic'

[Dmitry Zvorygin, 2012/07/20 16:13:42]

You don't use task.iconType in code currently, and task.iconUrl doesn't work at
all according to comment 
" file_browser.js:68
// TODO(serya): This hack needed until task.iconUrl is working
//             (see GetFileTasksFileBrowserFunction::RunImpl).
"

What was this change made for?

       },
       {
         taskId: extensionId + '|view-in-browser',
         title: 'View',
         regexp: /\.(html?|log|mht|mhtml|txt)$/i,
         iconUrl: emptyIcon
       },
       {
         taskId: extensionId + '|view-pdf',
         title: 'View',
@@ skipping 306 matching lines @@
 
       MOUNT_ARCHIVE: 'Open',
       FORMAT_DEVICE: 'Format device',
 
       ACTION_VIEW: 'View',
       ACTION_OPEN: 'Open',
       ACTION_WATCH: 'Watch',
       ACTION_LISTEN: 'Listen',
       INSTALL_CRX: 'Open',
 
+      CHANGE_DEFAULT_MENU_ITEM: 'Change default...',
+      CHANGE_DEFAULT_CAPTION: 'Choose the default app for $1 files:',
+
       GALLERY_EDIT: 'Edit',
       GALLERY_SHARE: 'Share',
       GALLERY_AUTOFIX: 'Auto-fix',
       GALLERY_FIXED: 'Fixed',
       GALLERY_CROP: 'Crop',
       GALLERY_EXPOSURE: 'Brightness',
       GALLERY_BRIGHTNESS: 'Brightness',
       GALLERY_CONTRAST: 'Contrast',
       GALLERY_ROTATE_LEFT: 'Left',
       GALLERY_ROTATE_RIGHT: 'Right',
@@ skipping 132 matching lines @@
       ID3_OFFICIAL_ARTIST: 'Official artist',  // WOAR
       ID3_OFFICIAL_AUDIO_SOURCE_WEBPAGE: 'Official audio source webpage', //WOAS
       ID3_PUBLISHERS_OFFICIAL_WEBPAGE: 'Publishers official webpage',  // WPUB
       ID3_USER_DEFINED_URL_LINK_FRAME: 'User defined URL link frame',  // WXXX
 
       FOLDER: 'Folder',
       DEVICE: 'Device',
       IMAGE_FILE_TYPE: '$1 image',
       VIDEO_FILE_TYPE: '$1 video',
       AUDIO_FILE_TYPE: '$1 audio',
+      GENERIC_FILE_TYPE: '$1 file',
       HTML_DOCUMENT_FILE_TYPE: 'HTML document',
       ZIP_ARCHIVE_FILE_TYPE: 'Zip archive',
       RAR_ARCHIVE_FILE_TYPE: 'RAR archive',
       TAR_ARCHIVE_FILE_TYPE: 'Tar archive',
       TAR_BZIP2_ARCHIVE_FILE_TYPE: 'Bzip2 compressed tar archive',
       TAR_GZIP_ARCHIVE_FILE_TYPE: 'Gzip compressed tar archive',
       PLAIN_TEXT_FILE_TYPE: 'Plain text file',
       PDF_DOCUMENT_FILE_TYPE: 'PDF document',
       WORD_DOCUMENT_FILE_TYPE: 'Word document',
       POWERPOINT_PRESENTATION_FILE_TYPE: 'PowerPoint presentation',
       EXCEL_FILE_TYPE: 'Excel spreadsheet',
 
+      SEARCH_TEXT_LABEL: 'Search',
       SEARCH_NO_MATCHING_FILES: 'No files match <b>"$1"</b>',
 
       TIME_TODAY: 'Today, $1',
       TIME_YESTERDAY: 'Yesterday, $1',
 
       DEFAULT_ACTION_LABEL: '(default)',
       ASH: true,
       DETAIL_VIEW_TOOLTIP: 'List view',
       THUMBNAIL_VIEW_TOOLTIP: 'Thumbnail view',
       textdirection: ''
@@ skipping 143 matching lines @@
     compare: function(a, b) {
       if (a > b) return 1;
       if (a < b) return -1;
       return 0;
     }
   };
 };
 
 return v8Intl;
 }());