Work on improving PpbAudioConfig:RecommendSampleFrameCount

ppapi/thunk/ppb_instance_api.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 PPAPI_THUNK_INSTANCE_API_H_
 #define PPAPI_THUNK_INSTANCE_API_H_
 
 #include "ppapi/c/dev/ppb_console_dev.h"
 #include "ppapi/c/dev/ppb_gamepad_dev.h"
 #include "ppapi/c/dev/ppb_url_util_dev.h"
 #include "ppapi/c/pp_completion_callback.h"
+#include "ppapi/c/ppb_audio_config.h"
 #include "ppapi/c/ppb_instance.h"
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_size.h"
 #include "ppapi/c/private/ppb_instance_private.h"
 #include "ppapi/shared_impl/api_id.h"
 
 // Windows headers interfere with this file.
 #ifdef PostMessage
 #undef PostMessage
 #endif
@@ skipping 14 matching lines @@
   // Not an exposed PPAPI function, this returns the internal view data struct.
   virtual const ViewData* GetViewData(PP_Instance instance) = 0;
 
   // InstancePrivate.
   virtual PP_Var GetWindowObject(PP_Instance instance) = 0;
   virtual PP_Var GetOwnerElementObject(PP_Instance instance) = 0;
   virtual PP_Var ExecuteScript(PP_Instance instance,
                                PP_Var script,
                                PP_Var* exception) = 0;
 
+  // Audio.
+  virtual uint32_t AudioHardwareOutputSampleRate(PP_Instance instance) = 0;
+  virtual uint32_t AudioHardwareOutputBufferSize(PP_Instance instance) = 0;
+
   // CharSet.
   virtual PP_Var GetDefaultCharSet(PP_Instance instance) = 0;
 
   // Console.
   virtual void Log(PP_Instance instance,
                    PP_LogLevel_Dev log_level,
                    PP_Var value) = 0;
   virtual void LogWithSource(PP_Instance instance,
                              PP_LogLevel_Dev log_level,
                              PP_Var source,
@@ skipping 56 matching lines @@
   virtual PP_Var GetPluginInstanceURL(PP_Instance instance,
                                       PP_URLComponents_Dev* components) = 0;
 
   static const ApiID kApiID = API_ID_PPB_INSTANCE;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_INSTANCE_API_H_