Refactor PPAPI proxy resource handling to maintain which host they came from,...

ppapi/proxy/ppb_audio_proxy.h

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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_PROXY_PPB_AUDIO_PROXY_H_
 #define PPAPI_PROXY_PPB_AUDIO_PROXY_H_
 
 #include "base/basictypes.h"
 #include "base/shared_memory.h"
 #include "base/sync_socket.h"
 #include "ipc/ipc_platform_file.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_module.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/cpp/completion_callback.h"
 #include "ppapi/proxy/interface_proxy.h"
 #include "ppapi/proxy/proxy_non_thread_safe_ref_count.h"
 
 struct PPB_Audio;
 
 namespace pp {
 namespace proxy {
 
+class AudioChannelConnectedTracking;
+struct PPBAudio_NotifyAudioStreamCreated_Params;
+class HostResource;
+
 class PPB_Audio_Proxy : public InterfaceProxy {
  public:
   PPB_Audio_Proxy(Dispatcher* dispatcher, const void* target_interface);
   virtual ~PPB_Audio_Proxy();
 
   const PPB_Audio* ppb_audio_target() const {
     return static_cast<const PPB_Audio*>(target_interface());
   }
 
   // InterfaceProxy implementation.
   virtual const void* GetSourceInterface() const;
   virtual InterfaceID GetInterfaceId() const;
   virtual bool OnMessageReceived(const IPC::Message& msg);
 
  private:
   // Plugin->renderer message handlers.
   void OnMsgCreate(PP_Instance instance_id,
-                   PP_Resource config_id,
-                   PP_Resource* result);
-  void OnMsgStartOrStop(PP_Resource audio_id, bool play);
+                   const HostResource& config_id,
+                   HostResource* result);
+  void OnMsgStartOrStop(const HostResource& audio_id, bool play);
 
   // Renderer->plugin message handlers.
   void OnMsgNotifyAudioStreamCreated(
-      PP_Resource audio_id,
-      int32_t result_code,
-      IPC::PlatformFileForTransit socket_handle,
-      base::SharedMemoryHandle shared_memory_handle,
-      uint32_t shared_memory_length);
+      const PPBAudio_NotifyAudioStreamCreated_Params& params);
 
-  void AudioChannelConnected(int32_t result, PP_Resource resource);
+  void AudioChannelConnected(int32_t result,
+                             AudioChannelConnectedTracking* tracking);
 
   // In the renderer, this is called in response to a stream created message.
   // It will retrieve the shared memory and socket handles and place them into
   // the given out params. The return value is a PPAPI error code.
   //
   // The input arguments should be initialized to 0 or -1, depending on the
   // platform's default invalid handle values. On error, some of these
   // arguments may be written to, and others may be untouched, depending on
   // where the error occurred.
   int32_t GetAudioConnectedHandles(
-      PP_Resource resource,
+      const HostResource& resource,
       IPC::PlatformFileForTransit* foreign_socket_handle,
       base::SharedMemoryHandle* foreign_shared_memory_handle,
       uint32_t* shared_memory_length);
 
   CompletionCallbackFactory<PPB_Audio_Proxy,
                             ProxyNonThreadSafeRefCount> callback_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_Audio_Proxy);
 };
 
 }  // namespace proxy
 }  // namespace pp
 
 #endif  // PPAPI_PROXY_PPB_AUDIO_PROXY_H_