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

google_apis/gcm/engine/heartbeat_manager_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 "google_apis/gcm/engine/heartbeat_manager.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 28 matching lines @@
   OnHeartbeatTriggered();
 }
 
 void TestHeartbeatManager::TriggerMissedHeartbeatCheck() {
   CheckForMissedHeartbeat();
 }
 
 class HeartbeatManagerTest : public testing::Test {
  public:
   HeartbeatManagerTest();
-  virtual ~HeartbeatManagerTest() {}
+  ~HeartbeatManagerTest() override {}
 
   TestHeartbeatManager* manager() const { return manager_.get(); }
   int heartbeats_sent() const { return heartbeats_sent_; }
   int reconnects_triggered() const { return reconnects_triggered_; }
 
   // Starts the heartbeat manager.
   void StartManager();
 
  private:
   // Helper functions for verifying heartbeat manager effects.
@@ skipping 152 matching lines @@
   EXPECT_EQ(0, heartbeats_sent());
 
   // Do nothing before the period is reached.
   manager()->TriggerMissedHeartbeatCheck();
   EXPECT_EQ(0, heartbeats_sent());
 }
 
 }  // namespace
 
 }  // namespace gcm