Standardize usage of virtual/override/final specifiers.

chrome/browser/services/gcm/gcm_profile_service_unittest.cc

 // Copyright 2014 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 "chrome/browser/services/gcm/gcm_profile_service.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 36 matching lines @@
               content::BrowserThread::UI),
           content::BrowserThread::GetMessageLoopProxyForThread(
               content::BrowserThread::IO))));
 }
 
 }  // namespace
 
 class GCMProfileServiceTest : public testing::Test {
  protected:
   GCMProfileServiceTest();
-  virtual ~GCMProfileServiceTest();
+  ~GCMProfileServiceTest() override;
 
   // testing::Test:
-  virtual void SetUp() override;
-  virtual void TearDown() override;
+  void SetUp() override;
+  void TearDown() override;
 
   FakeGCMClient* GetGCMClient() const;
 
   void CreateGCMProfileService();
   void SignIn();
   void SignOut();
 
   void RegisterAndWaitForCompletion(const std::vector<std::string>& sender_ids);
   void UnregisterAndWaitForCompletion();
   void SendAndWaitForCompletion(const GCMClient::OutgoingMessage& message);
@@ skipping 198 matching lines @@
   GCMClient::OutgoingMessage message;
   message.id = "1";
   message.data["key1"] = "value1";
   SendAndWaitForCompletion( message);
 
   EXPECT_EQ(message.id, send_message_id());
   EXPECT_EQ(GCMClient::SUCCESS, send_result());
 }
 
 }  // namespace gcm