Introduce AudioHardwareConfig for renderer side audio device info.

content/test/webrtc_audio_device_test.h

 // 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.
 
 #ifndef CONTENT_TEST_WEBRTC_AUDIO_DEVICE_TEST_H_
 #define CONTENT_TEST_WEBRTC_AUDIO_DEVICE_TEST_H_
 
 #include <string>
 
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "content/browser/renderer_host/media/mock_media_observer.h"
 #include "content/public/renderer/content_renderer_client.h"
 #include "ipc/ipc_listener.h"
+#include "media/base/audio_hardware_config.h"
 #include "media/base/channel_layout.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/webrtc/common_types.h"
 
 namespace IPC {
 class Channel;
 }
 
 namespace media {
 class AudioManager;
@@ skipping 75 matching lines @@
 
   T* operator->() { return ptr_; }
   T* get() const { return ptr_; }
 
   bool valid() const { return ptr_ != NULL; }
 
  protected:
   T* ptr_;
 };
 
-// Individual tests can provide an implementation (or mock) of this interface
-// when the audio code queries for hardware capabilities on the IO thread.
-class AudioUtilInterface {
- public:
-  virtual ~AudioUtilInterface() {}
-  virtual int GetAudioHardwareSampleRate() = 0;
-  virtual int GetAudioInputHardwareSampleRate(
-      const std::string& device_id) = 0;
-  virtual media::ChannelLayout GetAudioInputHardwareChannelLayout(
-      const std::string& device_id) = 0;
-};
-
 // Implemented and defined in the cc file.
 class ReplaceContentClientRenderer;
 
 class WebRTCAudioDeviceTest : public ::testing::Test, public IPC::Listener {
  public:
   WebRTCAudioDeviceTest();
   virtual ~WebRTCAudioDeviceTest();
 
   virtual void SetUp() OVERRIDE;
   virtual void TearDown() OVERRIDE;
 
   // Sends an IPC message to the IO thread channel.
   bool Send(IPC::Message* message);
 
-  void SetAudioUtilCallback(AudioUtilInterface* callback);
+  void SetAudioHardwareConfig(media::AudioHardwareConfig* hardware_config);
 
  protected:
   void InitializeIOThread(const char* thread_name);
   void UninitializeIOThread();
   void CreateChannel(const char* name);
   void DestroyChannel();
 
-  void OnGetHardwareSampleRate(int* sample_rate);
-  void OnGetHardwareInputSampleRate(int* sample_rate);
-  void OnGetHardwareInputChannelLayout(media::ChannelLayout* channels);
+  void OnGetAudioHardwareConfig(int* output_buffer_size,
+                                int* output_sample_rate, int* input_sample_rate,
+                                media::ChannelLayout* input_channel_layout);
 
   // IPC::Listener implementation.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // Posts a final task to the IO message loop and waits for completion.
   void WaitForIOThreadCompletion();
   void WaitForAudioManagerCompletion();
   void WaitForMessageLoopCompletion(base::MessageLoopProxy* loop);
 
   // Convenience getter for gmock.
@@ skipping 11 matching lines @@
   scoped_ptr<MockMediaObserver> media_observer_;
   scoped_ptr<MediaStreamManager> media_stream_manager_;
   scoped_ptr<media::AudioManager> audio_manager_;
   scoped_ptr<AudioMirroringManager> mirroring_manager_;
   scoped_ptr<net::URLRequestContext> test_request_context_;
   scoped_ptr<ResourceContext> resource_context_;
   scoped_ptr<IPC::Channel> channel_;
   scoped_refptr<AudioRendererHost> audio_render_host_;
   scoped_refptr<AudioInputRendererHost> audio_input_renderer_host_;
 
-  AudioUtilInterface* audio_util_callback_;  // Weak reference.
+  media::AudioHardwareConfig* audio_hardware_config_;  // Weak reference.
 
   // Initialized on the main test thread that we mark as the UI thread.
   scoped_ptr<TestBrowserThread> ui_thread_;
   // Initialized on our IO thread to satisfy BrowserThread::IO checks.
   scoped_ptr<TestBrowserThread> io_thread_;
 
 #if defined(OS_WIN)
   // COM initialization on the IO thread.
   scoped_ptr<base::win::ScopedCOMInitializer> initialize_com_;
 #endif
@@ skipping 18 matching lines @@
   virtual int SendPacket(int channel, const void* data, int len) OVERRIDE;
   virtual int SendRTCPPacket(int channel, const void* data, int len) OVERRIDE;
 
  private:
   webrtc::VoENetwork* network_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_WEBRTC_AUDIO_DEVICE_TEST_H_