Media Galleries API: Audio/Video attached pictures support.

chrome/renderer/resources/extensions/media_galleries_custom_bindings.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.
 
 // Custom binding for the Media Gallery API.
 
 var binding = require('binding').Binding.create('mediaGalleries');
 var blobNatives = requireNative('blob_natives');
 var mediaGalleriesNatives = requireNative('mediaGalleries');
 
@@ skipping 85 matching lines @@
       'isMediaDevice': false,
       'isAvailable': false,
     };
   });
 
   apiFunctions.setUpdateArgumentsPostValidate('getMetadata',
       function(mediaFile, options, callback) {
     var blobUuid = blobNatives.GetBlobUuid(mediaFile)
     return [blobUuid, options, callback];
   });
+
+  apiFunctions.setCustomCallback('getMetadata',
+                                 function(name, request, response) {
+    if (response.attachedImagesBlobInfo) {
+      for (var i = 0; i < response.attachedImagesBlobInfo.length; i++) {
+        var blobInfo = response.attachedImagesBlobInfo[i];
+        var blob = blobNatives.TakeBrowserProcessBlob(
+            blobInfo.blobUUID, blobInfo.type, blobInfo.size);
+        response.metadata.attachedImages.push(blob);
+      }
+    }
+
+    if (request.callback)
+      request.callback(response.metadata);
+    request.callback = null;
+  });
 });
 
 exports.binding = binding.generate();