Standardize usage of virtual/override/final specifiers in google_apis/.

google_apis/gcm/base/mcs_message_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 "google_apis/gcm/base/mcs_message.h"
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "google_apis/gcm/base/mcs_util.h"
 #include "google_apis/gcm/protocol/mcs.pb.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace gcm {
 
 const uint64 kAndroidId = 12345;
 const uint64 kSecret = 54321;
 
 class MCSMessageTest : public testing::Test {
  public:
   MCSMessageTest();
-  virtual ~MCSMessageTest();
+  ~MCSMessageTest() override;
+
  private:
   base::MessageLoop message_loop_;
 };
 
 MCSMessageTest::MCSMessageTest() {
 }
 
 MCSMessageTest::~MCSMessageTest() {
 }
 
@@ skipping 50 matching lines @@
   EXPECT_EQ(login_request->ByteSize(), message.size());
   EXPECT_EQ(login_request->SerializeAsString(), message.SerializeAsString());
   EXPECT_EQ(login_request->SerializeAsString(),
             message.GetProtobuf().SerializeAsString());
   login_copy = message.CloneProtobuf();
   EXPECT_EQ(login_request->SerializeAsString(),
             login_copy->SerializeAsString());
 }
 
 }  // namespace gcm