[PPAPI] ResourceVar now holds a pending renderer and browser host ID.

ppapi/shared_impl/resource_var.h

 // Copyright 2013 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_SHARED_IMPL_RESOURCE_VAR_H_
 #define PPAPI_SHARED_IMPL_RESOURCE_VAR_H_
 
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_var.h"
 #include "ppapi/shared_impl/ppapi_shared_export.h"
 #include "ppapi/shared_impl/var.h"
 
 namespace IPC {
 class Message;
 }
 
 namespace ppapi {
 
 // Represents a resource Var.
 class PPAPI_SHARED_EXPORT ResourceVar : public Var {
  public:
   // Gets the resource ID associated with this var.
   // This is 0 if a resource is still pending (only possible on the host side).
   // NOTE: This can return a PP_Resource with a reference count of 0 on the
   // plugin side. It should be AddRef'd if the resource is passed to the user.
   virtual PP_Resource GetPPResource() const = 0;
 
+  // Gets the pending resource host ID in the renderer.
+  virtual int GetPendingRendererHostId() const;
+
+  // Gets the pending resource host ID in the browser.
+  virtual int GetPendingBrowserHostId() const;
+
   // Gets the message for creating a plugin-side resource. Returns NULL if the
   // message is empty (which is always true on the plugin side).
   virtual const IPC::Message* GetCreationMessage() const;
 
   // Determines whether this is a pending resource.
   // This is true if, on the host side, the there is a creation_message and no
   // PP_Resource.
   virtual bool IsPending() const = 0;
 
   // Var override.
   virtual ResourceVar* AsResourceVar() OVERRIDE;
   virtual PP_VarType GetType() const OVERRIDE;
 
   // Helper function that converts a PP_Var to a ResourceVar. This will
   // return NULL if the PP_Var is not of Resource type.
   static ResourceVar* FromPPVar(PP_Var var);
 
  protected:
   ResourceVar();
 
   virtual ~ResourceVar();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ResourceVar);
 };
 
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_RESOURCE_VAR_H_