Plumb render view ID from audio-related code in renderer through IPCs to AudioRendererHost in brows…

content/renderer/pepper/pepper_platform_audio_input_impl.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/renderer/pepper/pepper_platform_audio_input_impl.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop_proxy.h"
 #include "build/build_config.h"
 #include "content/common/child_process.h"
 #include "content/common/media/audio_messages.h"
 #include "content/renderer/pepper/pepper_plugin_delegate_impl.h"
 #include "content/renderer/render_thread_impl.h"
 #include "media/audio/audio_manager_base.h"
 
 namespace content {
 
 // static
 PepperPlatformAudioInputImpl* PepperPlatformAudioInputImpl::Create(
+    int render_view_id,
     const base::WeakPtr<PepperPluginDelegateImpl>& plugin_delegate,
     const std::string& device_id,
     int sample_rate,
     int frames_per_buffer,
     webkit::ppapi::PluginDelegate::PlatformAudioInputClient* client) {
   scoped_refptr<PepperPlatformAudioInputImpl> audio_input(
-      new PepperPlatformAudioInputImpl());
+      new PepperPlatformAudioInputImpl(render_view_id));
   if (audio_input->Initialize(plugin_delegate, device_id, sample_rate,
                               frames_per_buffer, client)) {
     // Balanced by Release invoked in
     // PepperPlatformAudioInputImpl::ShutDownOnIOThread().
     return audio_input.release();
   }
   return NULL;
 }
 
 void PepperPlatformAudioInputImpl::StartCapture() {
@@ skipping 75 matching lines @@
         FROM_HERE,
         base::Bind(&PepperPlatformAudioInputImpl::NotifyStreamCreationFailed,
                    this));
   } else {
     // We will be notified by OnStreamCreated().
     ipc_->CreateStream(stream_id_, params_, device_id, false);
   }
 }
 
 void PepperPlatformAudioInputImpl::OnIPCClosed() {
-  ipc_ = NULL;
+  ipc_.reset();
 }
 
 PepperPlatformAudioInputImpl::~PepperPlatformAudioInputImpl() {
   // Make sure we have been shut down. Warning: this may happen on the I/O
   // thread!
   // Although these members should be accessed on a specific thread (either the
   // main thread or the I/O thread), it should be fine to examine their value
   // here.
   DCHECK_EQ(0, stream_id_);
   DCHECK(!client_);
   DCHECK(label_.empty());
   DCHECK(shutdown_called_);
 }
 
-PepperPlatformAudioInputImpl::PepperPlatformAudioInputImpl()
+PepperPlatformAudioInputImpl::PepperPlatformAudioInputImpl(int render_view_id)
     : client_(NULL),
       stream_id_(0),
       main_message_loop_proxy_(base::MessageLoopProxy::current()),
       shutdown_called_(false) {
-  ipc_ = RenderThreadImpl::current()->audio_input_message_filter();
+  ipc_ = RenderThreadImpl::current()->audio_input_message_filter()->
+      CreateAudioInputIPC(render_view_id);
 }
 
 bool PepperPlatformAudioInputImpl::Initialize(
     const base::WeakPtr<PepperPluginDelegateImpl>& plugin_delegate,
     const std::string& device_id,
     int sample_rate,
     int frames_per_buffer,
     webkit::ppapi::PluginDelegate::PlatformAudioInputClient* client) {
   DCHECK(main_message_loop_proxy_->BelongsToCurrentThread());
 
@@ skipping 119 matching lines @@
 }
 
 void PepperPlatformAudioInputImpl::NotifyStreamCreationFailed() {
   DCHECK(main_message_loop_proxy_->BelongsToCurrentThread());
 
   if (client_)
     client_->StreamCreationFailed();
 }
 
 }  // namespace content