Use macros to define pepper interfaces

ppapi/proxy/interface_proxy.h

 // 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_INTERFACE_PROXY_H_
 #define PPAPI_PROXY_INTERFACE_PROXY_H_
 
 #include "base/basictypes.h"
 #include "ipc/ipc_channel.h"
 #include "ipc/ipc_message.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_var.h"
 #include "ppapi/proxy/interface_id.h"
+#include "ppapi/shared_impl/function_group_base.h"
 
 namespace ppapi {
 namespace proxy {
 
 class Dispatcher;
 
 class InterfaceProxy : public IPC::Channel::Listener,
-                       public IPC::Message::Sender {
+                       public IPC::Message::Sender,
+                       public FunctionGroupBase {
  public:
   // Factory function type for interfaces. Ownership of the returned pointer
   // is transferred to the caller.
-  typedef InterfaceProxy* (*Factory)(Dispatcher* dispatcher,
-                                     const void* target_interface);
+  typedef InterfaceProxy* (*Factory)(Dispatcher* dispatcher);
 
+  // DEPRECATED: New classes should be registered directly in the interface
+  // list. This is kept around until we convert all the existing code.
+  //
   // Information about the interface. Each interface has a static function to
   // return its info, which allows either construction on the target side, and
   // getting the proxied interface on the source side (see dispatcher.h for
   // terminology).
   struct Info {
     const void* interface_ptr;
 
     const char* name;
     InterfaceID id;
 
     bool is_trusted;
 
     InterfaceProxy::Factory create_proxy;
   };
 
   virtual ~InterfaceProxy();
 
-  // The actual implementation of the given interface in the current process.
-  const void* target_interface() const { return target_interface_; }
-
   Dispatcher* dispatcher() const { return dispatcher_; }
 
   // IPC::Message::Sender implementation.
   virtual bool Send(IPC::Message* msg);
 
   // Sub-classes must implement IPC::Channel::Listener which contains this:
   //virtual bool OnMessageReceived(const IPC::Message& msg);
 
  protected:
   // Creates the given interface associated with the given dispatcher. The
   // dispatcher manages our lifetime.
-  //
-  // The target interface pointer, when non-NULL, indicates that this is a
-  // target proxy (see dispatcher.h for a definition).  In this case, the proxy
-  // will interpret this pointer to the actual implementation of the interface
-  // in the local process.
-  InterfaceProxy(Dispatcher* dispatcher, const void* target_interface);
+  InterfaceProxy(Dispatcher* dispatcher);
 
   uint32 SendCallback(PP_CompletionCallback callback);
   PP_CompletionCallback ReceiveCallback(uint32 serialized_callback);
 
  private:
   Dispatcher* dispatcher_;
-  const void* target_interface_;
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_INTERFACE_PROXY_H_