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

chrome/browser/notifications/sync_notifier/synced_notification_unittest.cc

 // Copyright (c) 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 <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/notifications/notification.h"
@@ skipping 312 matching lines @@
 
   notification1_->OnFetchComplete(GURL(kIconUrl1), &bitmap);
 
   // When we call OnFetchComplete on the last bitmap, show should be called.
   notification1_->OnFetchComplete(GURL(kImageUrl1), &bitmap);
 
   notification1_->OnFetchComplete(GURL(kButtonOneIconUrl), &bitmap);
 
   notification1_->OnFetchComplete(GURL(kButtonTwoIconUrl), &bitmap);
 
+  // Expect that the app icon has some data in it.
+  EXPECT_FALSE(notification1_->GetAppIcon().IsEmpty());
+  EXPECT_FALSE(notification_manager()->notification().small_image().IsEmpty());
+
   // Since we check Show() thoroughly in its own test, we only check cursorily.
   EXPECT_EQ(message_center::NOTIFICATION_TYPE_IMAGE,
             notification_manager()->notification().type());
   EXPECT_EQ(std::string(kTitle1),
             base::UTF16ToUTF8(notification_manager()->notification().title()));
   EXPECT_EQ(
       std::string(kText1),
       base::UTF16ToUTF8(notification_manager()->notification().message()));
 
   // TODO(petewil): Check that the bitmap in the notification is what we expect.
@@ skipping 48 matching lines @@
   EXPECT_EQ(std::string(kTitle1),
             base::UTF16ToUTF8(notification_manager()->notification().title()));
   EXPECT_EQ(
       std::string(kText1),
       base::UTF16ToUTF8(notification_manager()->notification().message()));
 }
 
 // TODO(petewil): Add a test for a notification being read and or deleted.
 
 }  // namespace notifier