Adds a small icon to notifications, and connects it to synced notifications.

ui/message_center/fake_message_center.cc

 // 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.
 
 #include "ui/message_center/fake_message_center.h"
 #include "ui/message_center/notification_list.h"
 
 namespace message_center {
 
 FakeMessageCenter::FakeMessageCenter() {
@@ skipping 67 matching lines @@
 }
 
 void FakeMessageCenter::SetNotificationIcon(const std::string& notification_id,
                                             const gfx::Image& image) {
 }
 
 void FakeMessageCenter::SetNotificationImage(const std::string& notification_id,
                                              const gfx::Image& image) {
 }
 
+void FakeMessageCenter::SetNotificationSmallImage(
+    const std::string& notification_id,
+    const gfx::Image& image) {}
+
 void FakeMessageCenter::SetNotificationButtonIcon(
     const std::string& notification_id,
     int button_index,
     const gfx::Image& image) {
 }
 
 void FakeMessageCenter::DisableNotificationsByNotifier(
     const NotifierId& notifier_id) {
 }
 
@@ skipping 36 matching lines @@
   return false;
 }
 
 void FakeMessageCenter::RestartPopupTimers() {}
 
 void FakeMessageCenter::PausePopupTimers() {}
 
 void FakeMessageCenter::DisableTimersForTest() {}
 
 }  // namespace message_center