Use macros to define pepper interfaces

ppapi/proxy/interface_proxy.cc

 // 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.
 
 #include "ppapi/proxy/interface_proxy.h"
 
 #include "base/logging.h"
 #include "ppapi/proxy/dispatcher.h"
 
 namespace ppapi {
 namespace proxy {
 
-InterfaceProxy::InterfaceProxy(Dispatcher* dispatcher,
-                               const void* target_interface)
-    : dispatcher_(dispatcher),
-      target_interface_(target_interface) {
+InterfaceProxy::InterfaceProxy(Dispatcher* dispatcher)
+    : dispatcher_(dispatcher) {
 }
 
 InterfaceProxy::~InterfaceProxy() {
 }
 
 bool InterfaceProxy::Send(IPC::Message* msg) {
   return dispatcher_->Send(msg);
 }
 
 uint32 InterfaceProxy::SendCallback(PP_CompletionCallback callback) {
   return dispatcher_->callback_tracker().SendCallback(callback);
 }
 
 PP_CompletionCallback InterfaceProxy::ReceiveCallback(
     uint32 serialized_callback) {
   return dispatcher_->callback_tracker().ReceiveCallback(serialized_callback);
 }
 
 }  // namespace proxy
 }  // namespace ppapi