Standardize usage of virtual/override/final specifiers.

media/video/capture/fake_video_capture_device_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 "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "base/test/test_timeouts.h"
 #include "base/threading/thread.h"
 #include "media/video/capture/fake_video_capture_device.h"
@@ skipping 65 matching lines @@
 
   FakeVideoCaptureDeviceTest()
       : loop_(new base::MessageLoop()),
         client_(new MockClient(
             base::Bind(&FakeVideoCaptureDeviceTest::OnFrameCaptured,
                        base::Unretained(this)))),
         video_capture_device_factory_(new FakeVideoCaptureDeviceFactory()) {
     device_enumeration_listener_ = new DeviceEnumerationListener();
   }
 
-  virtual void SetUp() {
-  }
+  void SetUp() override {}
 
   void OnFrameCaptured(const VideoCaptureFormat& format) {
     last_format_ = format;
     run_loop_->QuitClosure().Run();
   }
 
   void WaitForCapturedFrame() {
     run_loop_.reset(new base::RunLoop());
     run_loop_->Run();
   }
@@ skipping 102 matching lines @@
 
   // We set TimeWait to 200 action timeouts and this should be enough for at
   // least action_count/kFakeCaptureCapabilityChangePeriod calls.
   for (int i = 0; i < action_count; ++i) {
     WaitForCapturedFrame();
   }
   device->StopAndDeAllocate();
 }
 
 };  // namespace media