Refactor the Get*Hardware* routines a bit.

content/test/webrtc_audio_device_test.h

 // Copyright (c) 2011 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_TEST_WEBRTC_AUDIO_DEVICE_TEST_H_
 #define CONTENT_TEST_WEBRTC_AUDIO_DEVICE_TEST_H_
 #pragma once
 
 #include <string>
 
@@ skipping 122 matching lines @@
 
   WebRTCAudioDeviceTest();
   virtual ~WebRTCAudioDeviceTest();
 
   virtual void SetUp();
   virtual void TearDown();
 
   // Sends an IPC message to the IO thread channel.
   bool Send(IPC::Message* message);
 
-  void set_audio_util_callback(AudioUtilInterface* callback) {
-    audio_util_callback_ = callback;
-  }
+  void SetAudioUtilCallback(AudioUtilInterface* callback);
 
  protected:
   void InitializeIOThread(const char* thread_name);
   void UninitializeIOThread();
   void CreateChannel(const char* name,
                      content::ResourceContext* resource_context);
   void DestroyChannel();
 
   void OnGetHardwareSampleRate(double* sample_rate);
   void OnGetHardwareInputSampleRate(double* sample_rate);
@@ skipping 44 matching lines @@
   virtual ~WebRTCTransportImpl();
 
   virtual int SendPacket(int channel, const void* data, int len);
   virtual int SendRTCPPacket(int channel, const void* data, int len);
 
  private:
   webrtc::VoENetwork* network_;
 };
 
 #endif  // CONTENT_TEST_WEBRTC_AUDIO_DEVICE_TEST_H_