Introduce AudioHardwareConfig for renderer side audio device info.

content/renderer/renderer_webkitplatformsupport_impl.cc

Index: content/renderer/renderer_webkitplatformsupport_impl.cc
diff --git a/content/renderer/renderer_webkitplatformsupport_impl.cc b/content/renderer/renderer_webkitplatformsupport_impl.cc
index 4b05c99bd88e2f220d07c33c6ebcfb4b229c8f17..7965cd6a2342cb27f0fb523fcacc1572dcec17ca 100644
--- a/content/renderer/renderer_webkitplatformsupport_impl.cc
+++ b/content/renderer/renderer_webkitplatformsupport_impl.cc
@@ -27,8 +27,8 @@
 #include "content/renderer/dom_storage/webstoragenamespace_impl.h"
 #include "content/renderer/gamepad_shared_memory_reader.h"
 #include "content/renderer/hyphenator/hyphenator.h"
-#include "content/renderer/media/audio_hardware.h"
 #include "content/renderer/media/media_stream_dependency_factory.h"
+#include "content/renderer/media/renderer_audio_hardware_config.h"
 #include "content/renderer/media/renderer_webaudiodevice_impl.h"
 #include "content/renderer/render_thread_impl.h"
 #include "content/renderer/renderer_clipboard_client.h"
@@ -555,11 +555,13 @@ bool RendererWebKitPlatformSupportImpl::canAccelerate2dCanvas() {
 }
 
 double RendererWebKitPlatformSupportImpl::audioHardwareSampleRate() {
-  return GetAudioOutputSampleRate();
+  RenderThreadImpl* thread = RenderThreadImpl::current();
+  return thread->GetAudioHardwareConfig()->GetOutputSampleRate();
 }
 
 size_t RendererWebKitPlatformSupportImpl::audioHardwareBufferSize() {
-  return GetAudioOutputBufferSize();
+  RenderThreadImpl* thread = RenderThreadImpl::current();
+  return thread->GetAudioHardwareConfig()->GetOutputBufferSize();
 }
 
 // TODO(crogers): remove deprecated API as soon as WebKit calls new API.