Add appIconMask to notification API

chrome/renderer/resources/extensions/notifications_custom_bindings.js

 // Copyright 2013 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 bindings for the notifications API.
 //
 var binding = require('binding').Binding.create('notifications');
 
 var sendRequest = require('sendRequest').sendRequest;
 var imageUtil = require('imageUtil');
@@ skipping 22 matching lines @@
   // |iconUrl| might be optional for notification updates.
   if (notificationDetails.iconUrl) {
     $Array.push(urlSpecs, {
       path: notificationDetails.iconUrl,
       width: imageSizes.icon.width * imageSizes.scaleFactor,
       height: imageSizes.icon.height * imageSizes.scaleFactor,
       callback: imageDataSetter(notificationDetails, 'iconBitmap')
     });
   }
 
+  // |appIconMaskUrl| is optional.
+  if (notificationDetails.appIconMaskUrl) {
+    $Array.push(urlSpecs, {
+      path: notificationDetails.appIconMaskUrl,
+      width: imageSizes.appIconMask.width * imageSizes.scaleFactor,
+      height: imageSizes.appIconMask.height * imageSizes.scaleFactor,
+      callback: imageDataSetter(notificationDetails, 'appIconMaskBitmap')
+    });
+  }
+
   // |imageUrl| is optional.
   if (notificationDetails.imageUrl) {
     $Array.push(urlSpecs, {
       path: notificationDetails.imageUrl,
       width: imageSizes.image.width * imageSizes.scaleFactor,
       height: imageSizes.image.height * imageSizes.scaleFactor,
       callback: imageDataSetter(notificationDetails, 'imageBitmap')
     });
   }
 
@@ skipping 73 matching lines @@
 
 var notificationsCustomHook = function(bindingsAPI, extensionId) {
   var apiFunctions = bindingsAPI.apiFunctions;
   apiFunctions.setHandleRequest('create', handleCreate);
   apiFunctions.setHandleRequest('update', handleUpdate);
 };
 
 binding.registerCustomHook(notificationsCustomHook);
 
 exports.binding = binding.generate();