Support audio output device enumeration and selection in PPAPI

content/renderer/pepper/content_renderer_pepper_host_factory.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/content_renderer_pepper_host_factory.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_util.h"
 #include "build/build_config.h"
 #include "content/common/content_switches_internal.h"
 #include "content/public/common/content_client.h"
 #include "content/public/renderer/content_renderer_client.h"
 #include "content/renderer/pepper/pepper_audio_encoder_host.h"
 #include "content/renderer/pepper/pepper_audio_input_host.h"
+#include "content/renderer/pepper/pepper_audio_output_host.h"
 #include "content/renderer/pepper/pepper_camera_device_host.h"
 #include "content/renderer/pepper/pepper_compositor_host.h"
 #include "content/renderer/pepper/pepper_file_chooser_host.h"
 #include "content/renderer/pepper/pepper_file_ref_renderer_host.h"
 #include "content/renderer/pepper/pepper_file_system_host.h"
 #include "content/renderer/pepper/pepper_graphics_2d_host.h"
 #include "content/renderer/pepper/pepper_media_stream_video_track_host.h"
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 #include "content/renderer/pepper/pepper_url_loader_host.h"
 #include "content/renderer/pepper/pepper_video_capture_host.h"
@@ skipping 176 matching lines @@
 
   // Dev interfaces.
   if (GetPermissions().HasPermission(ppapi::PERMISSION_DEV)) {
     switch (message.type()) {
       case PpapiHostMsg_AudioEncoder_Create::ID:
         return base::MakeUnique<PepperAudioEncoderHost>(host_, instance,
                                                         resource);
       case PpapiHostMsg_AudioInput_Create::ID:
         return base::MakeUnique<PepperAudioInputHost>(host_, instance,
                                                       resource);
+      case PpapiHostMsg_AudioOutput_Create::ID:
+        return base::MakeUnique<PepperAudioOutputHost>(host_, instance,
+                                                       resource);
       case PpapiHostMsg_FileChooser_Create::ID:
         return base::MakeUnique<PepperFileChooserHost>(host_, instance,
                                                        resource);
       case PpapiHostMsg_VideoCapture_Create::ID: {
         std::unique_ptr<PepperVideoCaptureHost> host(
             new PepperVideoCaptureHost(host_, instance, resource));
         return host->Init() ? std::move(host) : nullptr;
       }
     }
   }
@@ skipping 11 matching lines @@
 
   return nullptr;
 }
 
 const ppapi::PpapiPermissions&
 ContentRendererPepperHostFactory::GetPermissions() const {
   return host_->GetPpapiHost()->permissions();
 }
 
 }  // namespace content