Standardize usage of virtual/override/final in content/renderer/

content/renderer/media/video_capture_impl_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 "base/bind.h"
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "content/child/child_process.h"
@@ skipping 17 matching lines @@
 
 class MockVideoCaptureImpl : public VideoCaptureImpl {
  public:
   MockVideoCaptureImpl(media::VideoCaptureSessionId session_id,
                        VideoCaptureMessageFilter* filter,
                        base::Closure destruct_callback)
       : VideoCaptureImpl(session_id, filter),
         destruct_callback_(destruct_callback) {
   }
 
-  virtual ~MockVideoCaptureImpl() {
-    destruct_callback_.Run();
-  }
+  ~MockVideoCaptureImpl() override { destruct_callback_.Run(); }
 
  private:
   base::Closure destruct_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(MockVideoCaptureImpl);
 };
 
 class MockVideoCaptureImplManager : public VideoCaptureImplManager {
  public:
   explicit MockVideoCaptureImplManager(
       base::Closure destruct_video_capture_callback)
       : destruct_video_capture_callback_(
           destruct_video_capture_callback) {}
-  virtual ~MockVideoCaptureImplManager() {}
+  ~MockVideoCaptureImplManager() override {}
 
  protected:
-  virtual VideoCaptureImpl* CreateVideoCaptureImplForTesting(
+  VideoCaptureImpl* CreateVideoCaptureImplForTesting(
       media::VideoCaptureSessionId id,
       VideoCaptureMessageFilter* filter) const override {
     return new MockVideoCaptureImpl(id,
                                     filter,
                                     destruct_video_capture_callback_);
   }
 
  private:
   base::Closure destruct_video_capture_callback_;
 
@@ skipping 100 matching lines @@
   cleanup_run_loop_.Run();
 }
 
 TEST_F(VideoCaptureImplManagerTest, NoLeak) {
   manager_->UseDevice(0).Reset();
   manager_.reset();
   cleanup_run_loop_.Run();
 }
 
 }  // namespace content