Files.app: Add new metadata model to Gallery.app.

ui/file_manager/gallery/js/gallery.js

 // Copyright 2014 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.
 
 /**
  * Overrided metadata worker's path.
  * @type {string}
  */
 ContentProvider.WORKER_SCRIPT = '/js/metadata_worker.js';
+ContentMetadataProvider.WORKER_SCRIPT = '/js/metadata_worker.js';
 
 /**
  * Gallery for viewing and editing image files.
  *
  * @param {!VolumeManager} volumeManager The VolumeManager instance of the
  *     system.
  * @constructor
  * @struct
  */
 function Gallery(volumeManager) {
@@ skipping 24 matching lines @@
     readonlyDirName: '',
     displayStringFunction: function() { return ''; },
     loadTimeData: {},
     curDirEntry: null,
     searchResults: null
   };
   this.container_ = queryRequiredElement(document, '.gallery');
   this.document_ = document;
   this.metadataCache_ = this.context_.metadataCache;
   this.volumeManager_ = volumeManager;
+  /**
+   * @private {!FileSystemMetadata}
+   * @const
+   */
+  this.fileSystemMetadata_ = FileSystemMetadata.create(
+      new MetadataProviderCache(), volumeManager);
   this.selectedEntry_ = null;
   this.metadataCacheObserverId_ = null;
   this.onExternallyUnmountedBound_ = this.onExternallyUnmounted_.bind(this);
 
   this.dataModel_ = new GalleryDataModel(
-      this.context_.metadataCache);
+      this.context_.metadataCache,
+      this.fileSystemMetadata_);
   var downloadVolumeInfo = this.volumeManager_.getCurrentProfileVolumeInfo(
       VolumeManagerCommon.VolumeType.DOWNLOADS);
   downloadVolumeInfo.resolveDisplayRoot().then(function(entry) {
     this.dataModel_.fallbackSaveDirectory = entry;
   }.bind(this)).catch(function(error) {
     console.error(
         'Failed to obtain the fallback directory: ' + (error.stack || error));
   });
   this.selectionModel_ = new cr.ui.ListSelectionModel();
 
@@ skipping 294 matching lines @@
       chunk.forEach(function(chunkItem, index) {
         var locationInfo = self.volumeManager_.getLocationInfo(chunkItem.entry);
         if (!locationInfo)  // Skip the item, since gone.
           return;
         var clonedMetadata = MetadataCache.cloneMetadata(metadataList[index]);
         items.push(new Gallery.Item(
             chunkItem.entry,
             locationInfo,
             clonedMetadata,
             self.metadataCache_,
+            self.fileSystemMetadata_,
             /* original */ true));
       });
       self.dataModel_.push.apply(self.dataModel_, items);
 
       // Apply the selection.
       var selectionUpdated = false;
       for (var i = 0; i < chunk.length; i++) {
         if (!chunk[i].selected)
           continue;
         var index = self.dataModel_.indexOf(items[i]);
@@ skipping 570 matching lines @@
     });
 
 /**
  * Enteres the debug mode.
  */
 window.debugMe = function() {
   initializePromise.then(function(gallery) {
     gallery.debugMe();
   });
 };