Move test runner to a component

components/test_runner/mock_web_audio_device.h

 // 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.
 
-#ifndef CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCK_WEB_AUDIO_DEVICE_H_
-#define CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCK_WEB_AUDIO_DEVICE_H_
+#ifndef COMPONENTS_TEST_RUNNER_MOCK_WEB_AUDIO_DEVICE_H_
+#define COMPONENTS_TEST_RUNNER_MOCK_WEB_AUDIO_DEVICE_H_
 
 #include "base/macros.h"
 #include "third_party/WebKit/public/platform/WebAudioDevice.h"
 
 namespace content {
 
 class MockWebAudioDevice : public blink::WebAudioDevice {
  public:
   explicit MockWebAudioDevice(double sample_rate);
   virtual ~MockWebAudioDevice();
 
   // blink::WebAudioDevice:
   virtual void start();
   virtual void stop();
   virtual double sampleRate();
 
  private:
   double sample_rate_;
 
   DISALLOW_COPY_AND_ASSIGN(MockWebAudioDevice);
 };
 
 }  // namespace content
 
-#endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCK_WEB_AUDIO_DEVICE_H_
+#endif  // COMPONENTS_TEST_RUNNER_MOCK_WEB_AUDIO_DEVICE_H_