Standardize usage of virtual/override/final in remoting/

remoting/host/video_scheduler_unittest.cc

 // Copyright (c) 2012 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 "remoting/host/video_scheduler.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 63 matching lines @@
  private:
   DISALLOW_COPY_AND_ASSIGN(MockVideoEncoder);
 };
 
 class ThreadCheckVideoEncoder : public VideoEncoderVerbatim {
  public:
   ThreadCheckVideoEncoder(
       scoped_refptr<base::SingleThreadTaskRunner> task_runner)
       : task_runner_(task_runner) {
   }
-  virtual ~ThreadCheckVideoEncoder() {
+  ~ThreadCheckVideoEncoder() override {
     EXPECT_TRUE(task_runner_->BelongsToCurrentThread());
   }
 
  private:
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(ThreadCheckVideoEncoder);
 };
 
 class ThreadCheckDesktopCapturer : public FakeDesktopCapturer {
  public:
   ThreadCheckDesktopCapturer(
       scoped_refptr<base::SingleThreadTaskRunner> task_runner)
       : task_runner_(task_runner) {
   }
-  virtual ~ThreadCheckDesktopCapturer() {
+  ~ThreadCheckDesktopCapturer() override {
     EXPECT_TRUE(task_runner_->BelongsToCurrentThread());
   }
 
  private:
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(ThreadCheckDesktopCapturer);
 };
 
 class ThreadCheckMouseCursorMonitor : public FakeMouseCursorMonitor {
  public:
   ThreadCheckMouseCursorMonitor(
       scoped_refptr<base::SingleThreadTaskRunner> task_runner)
       : task_runner_(task_runner) {
   }
-  virtual ~ThreadCheckMouseCursorMonitor() {
+  ~ThreadCheckMouseCursorMonitor() override {
     EXPECT_TRUE(task_runner_->BelongsToCurrentThread());
   }
 
  private:
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(ThreadCheckMouseCursorMonitor);
 };
 
 class VideoSchedulerTest : public testing::Test {
@@ skipping 211 matching lines @@
       new ThreadCheckMouseCursorMonitor(capture_task_runner_));
 
   // Start and stop the scheduler, so it will tear down the screen capturer,
   // video encoder and mouse monitor.
   StartVideoScheduler(capturer.Pass(), encoder.Pass(),
                       mouse_cursor_monitor.Pass());
   StopVideoScheduler();
 }
 
 }  // namespace remoting