PPAPI/NaCl: Make NaClIPCAdapter transfer handles more generally

ppapi/proxy/ppb_audio_proxy.h

Index: ppapi/proxy/ppb_audio_proxy.h
diff --git a/ppapi/proxy/ppb_audio_proxy.h b/ppapi/proxy/ppb_audio_proxy.h
index b5169258cc627f7d384eeaa280767f7fb331ee40..2f85a83d4f79b5d319a3b27ebf63ef9cee3d7f32 100644
--- a/ppapi/proxy/ppb_audio_proxy.h
+++ b/ppapi/proxy/ppb_audio_proxy.h
@@ -17,6 +17,7 @@
 #include "ppapi/c/ppb_audio_config.h"
 #include "ppapi/proxy/interface_proxy.h"
 #include "ppapi/proxy/proxy_completion_callback_factory.h"
+#include "ppapi/proxy/serialized_structs.h"
 #include "ppapi/utility/completion_callback_factory.h"
 
 namespace ppapi {
@@ -51,11 +52,11 @@ class PPB_Audio_Proxy : public InterfaceProxy {
   void OnMsgStartOrStop(const ppapi::HostResource& audio_id, bool play);
 
   // Renderer->plugin message handlers.
-  void OnMsgNotifyAudioStreamCreated(const ppapi::HostResource& audio_id,
-                                     int32_t result_code,
-                                     IPC::PlatformFileForTransit socket_handle,
-                                     base::SharedMemoryHandle handle,
-                                     uint32_t length);
+  void OnMsgNotifyAudioStreamCreated(
+      const ppapi::HostResource& audio_id,
+      int32_t result_code,
+      ppapi::proxy::SerializedHandle socket_handle,
+      ppapi::proxy::SerializedHandle handle);
 
   void AudioChannelConnected(int32_t result,
                              const ppapi::HostResource& resource);