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

ppapi/proxy/ppb_buffer_proxy.h

Index: ppapi/proxy/ppb_buffer_proxy.h
===================================================================
--- ppapi/proxy/ppb_buffer_proxy.h	(revision 72517)
+++ ppapi/proxy/ppb_buffer_proxy.h	(working copy)
@@ -13,6 +13,8 @@
 namespace pp {
 namespace proxy {
 
+class SerializedResource;
+
 class PPB_Buffer_Proxy : public InterfaceProxy {
  public:
   PPB_Buffer_Proxy(Dispatcher* dispatcher, const void* target_interface);
@@ -31,7 +33,7 @@
   // Message handlers.
   void OnMsgCreate(PP_Instance instance,
                    uint32_t size,
-                   PP_Resource* result_resource,
+                   SerializedResource* result_resource,
                    int* result_shm_handle);
 };