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

ui/message_center/message_center_impl_unittest.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/message_center_impl.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 688 matching lines @@
 
   // Now try setting the icon to a different size.
   gfx::Size new_size(16, 16);
   EXPECT_NE(original_size, new_size);
 
   gfx::Canvas canvas(new_size, 1.0f, true);
   canvas.DrawColor(SK_ColorBLUE);
   gfx::Image testImage(gfx::Image(gfx::ImageSkia(canvas.ExtractImageRep())));
   message_center()->SetNotificationIcon(id, testImage);
   message_center()->SetNotificationImage(id, testImage);
+  message_center()->SetNotificationSmallImage(id, testImage);
   message_center()->SetNotificationButtonIcon(id, 0, testImage);
   message_center()->SetNotificationButtonIcon(id, 1, testImage);
 
   // The notification should be in the queue.
   EXPECT_FALSE(message_center()->HasNotification(id));
 
   // Close the message center; then the update should have propagated.
   message_center()->SetVisibility(VISIBILITY_TRANSIENT);
   // The notification should no longer be in the queue.
   EXPECT_TRUE(message_center()->HasNotification(id));
 
   Notification* mc_notification =
       *(message_center()->GetVisibleNotifications().begin());
   const std::vector<ButtonInfo>& buttons = mc_notification->buttons();
   ASSERT_EQ(2u, buttons.size());
 
   EXPECT_EQ(new_size, mc_notification->icon().Size());
   EXPECT_EQ(new_size, mc_notification->image().Size());
+  EXPECT_EQ(new_size, mc_notification->small_image().Size());
   EXPECT_EQ(new_size, buttons[0].icon.Size());
   EXPECT_EQ(new_size, buttons[1].icon.Size());
 }
 
 TEST_F(MessageCenterImplTest, CachedUnreadCount) {
   message_center()->AddNotification(
       scoped_ptr<Notification>(CreateSimpleNotification("id1")));
   message_center()->AddNotification(
       scoped_ptr<Notification>(CreateSimpleNotification("id2")));
   message_center()->AddNotification(
@@ skipping 18 matching lines @@
   }
   EXPECT_EQ(3u, message_center()->UnreadNotificationCount());
 
   // Opening the message center will reset the unread count.
   message_center()->SetVisibility(VISIBILITY_MESSAGE_CENTER);
   EXPECT_EQ(0u, message_center()->UnreadNotificationCount());
 }
 
 }  // namespace internal
 }  // namespace message_center