Introduce AudioHardwareConfig for renderer side audio device info.

content/browser/renderer_host/media/audio_renderer_host.cc

 // 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.
 
 #include "content/browser/renderer_host/media/audio_renderer_host.h"
 
 #include "base/bind.h"
 #include "base/metrics/histogram.h"
 #include "base/process.h"
 #include "base/shared_memory.h"
@@ skipping 105 matching lines @@
 
 void AudioRendererHost::OnError(media::AudioOutputController* controller,
                                 int error_code) {
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(&AudioRendererHost::DoHandleError,
                  this, make_scoped_refptr(controller), error_code));
 }
 
+void AudioRendererHost::OnDeviceChange(media::AudioOutputController* controller,
+                                       int new_buffer_size,
+                                       int new_sample_rate) {
+  BrowserThread::PostTask(
+      BrowserThread::IO,
+      FROM_HERE,
+      base::Bind(&AudioRendererHost::DoSendDeviceChangeMessage,
+                 this, make_scoped_refptr(controller), new_buffer_size,
+                 new_sample_rate));
+}
+
 void AudioRendererHost::DoCompleteCreation(
     media::AudioOutputController* controller) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   AudioEntry* entry = LookupByController(controller);
   if (!entry)
     return;
 
   if (!peer_handle()) {
     NOTREACHED() << "Renderer process handle is invalid.";
@@ skipping 53 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   AudioEntry* entry = LookupByController(controller);
   if (!entry)
     return;
 
   Send(new AudioMsg_NotifyStreamStateChanged(
       entry->stream_id, media::AudioOutputIPCDelegate::kPaused));
 }
 
+void AudioRendererHost::DoSendDeviceChangeMessage(
+    media::AudioOutputController* controller, int new_buffer_size,
+    int new_sample_rate) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+
+  AudioEntry* entry = LookupByController(controller);
+  if (!entry)
+    return;
+
+  Send(new AudioMsg_NotifyDeviceChanged(
+      entry->stream_id, new_buffer_size, new_sample_rate));
+}
+
 void AudioRendererHost::DoHandleError(media::AudioOutputController* controller,
                                       int error_code) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   AudioEntry* entry = LookupByController(controller);
   if (!entry)
     return;
 
   DeleteEntryOnError(entry);
 }
@@ skipping 257 matching lines @@
   return NULL;
 }
 
 media::AudioOutputController* AudioRendererHost::LookupControllerByIdForTesting(
     int stream_id) {
   AudioEntry* const entry = LookupById(stream_id);
   return entry ? entry->controller : NULL;
 }
 
 }  // namespace content