Use macros to define pepper interfaces

ppapi/proxy/ppb_buffer_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_PPB_BUFFER_PROXY_H_
 #define PPAPI_PPB_BUFFER_PROXY_H_
 
 #include "base/shared_memory.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/proxy/interface_proxy.h"
@@ skipping 28 matching lines @@
   base::SharedMemory shm_;
   uint32_t size_;
   void* mapped_data_;
   int map_count_;
 
   DISALLOW_COPY_AND_ASSIGN(Buffer);
 };
 
 class PPB_Buffer_Proxy : public InterfaceProxy {
  public:
-  PPB_Buffer_Proxy(Dispatcher* dispatcher, const void* target_interface);
+  PPB_Buffer_Proxy(Dispatcher* dispatcher);
   virtual ~PPB_Buffer_Proxy();
 
-  static const Info* GetInfo();
-
   static PP_Resource CreateProxyResource(PP_Instance instance,
                                          uint32_t size);
   static PP_Resource AddProxyResource(const HostResource& resource,
                                       base::SharedMemoryHandle shm_handle,
                                       uint32_t size);
 
-  const PPB_Buffer_Dev* ppb_buffer_target() const {
-    return static_cast<const PPB_Buffer_Dev*>(target_interface());
-  }
-
   // InterfaceProxy implementation.
   virtual bool OnMessageReceived(const IPC::Message& msg);
 
+  static const InterfaceID kInterfaceID = INTERFACE_ID_PPB_BUFFER;
+
  private:
   // Message handlers.
   void OnMsgCreate(PP_Instance instance,
                    uint32_t size,
                    HostResource* result_resource,
                    base::SharedMemoryHandle* result_shm_handle);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PPB_BUFFER_PROXY_H_