test_runner: Migrate MockWebAudioDevice to our Chromium C++ style.

content/shell/renderer/test_runner/mock_web_audio_device.h

 // Copyright 2013 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_MOCKWEBAUDIODEVICE_H_
-#define CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCKWEBAUDIODEVICE_H_
+#ifndef CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCK_WEB_AUDIO_DEVICE_H_
+#define CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCK_WEB_AUDIO_DEVICE_H_
 
-#include "base/basictypes.h"
-#include "content/shell/renderer/test_runner/TestCommon.h"
+#include "base/macros.h"
 #include "third_party/WebKit/public/platform/WebAudioDevice.h"
 
 namespace content {
 
 class MockWebAudioDevice : public blink::WebAudioDevice {
-public:
-    explicit MockWebAudioDevice(double sampleRate);
-    virtual ~MockWebAudioDevice();
+ public:
+  explicit MockWebAudioDevice(double sample_rate);
+  virtual ~MockWebAudioDevice();
 
-    virtual void start();
-    virtual void stop();
-    virtual double sampleRate();
+  // blink::WebAudioDevice:
+  virtual void start();
+  virtual void stop();
+  virtual double sampleRate();
 
-private:
-    double m_sampleRate;
+ private:
+  double sample_rate_;
 
-    DISALLOW_COPY_AND_ASSIGN(MockWebAudioDevice);
+  DISALLOW_COPY_AND_ASSIGN(MockWebAudioDevice);
 };
 
-} // namespace content
+}  // namespace content
 
-#endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCKWEBAUDIODEVICE_H_
+#endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCK_WEB_AUDIO_DEVICE_H_