Make a global enum to differentiate impl & proxy.

ppapi/shared_impl/ppb_file_io_shared.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/shared_impl/ppb_file_io_shared.h"
 
 #include <string.h>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 18 matching lines @@
 PPB_FileIO_Shared::CallbackEntry::CallbackEntry(const CallbackEntry& entry)
     : callback(entry.callback),
       read_buffer(entry.read_buffer),
       info(entry.info) {
 }
 
 PPB_FileIO_Shared::CallbackEntry::~CallbackEntry() {
 }
 
 PPB_FileIO_Shared::PPB_FileIO_Shared(PP_Instance instance)
-    : Resource(instance),
+    : Resource(OBJECT_IS_IMPL, instance),
       file_system_type_(PP_FILESYSTEMTYPE_INVALID),
       file_open_(false),
       pending_op_(OPERATION_NONE) {
 }
 
 PPB_FileIO_Shared::PPB_FileIO_Shared(const HostResource& host_resource)
-    : Resource(host_resource),
+    : Resource(OBJECT_IS_PROXY, host_resource),
       file_system_type_(PP_FILESYSTEMTYPE_INVALID),
       file_open_(false),
       pending_op_(OPERATION_NONE) {
 }
 
 PPB_FileIO_Shared::~PPB_FileIO_Shared() {
 }
 
 thunk::PPB_FileIO_API* PPB_FileIO_Shared::AsPPB_FileIO_API() {
   return this;
@@ skipping 158 matching lines @@
 
   CallbackEntry front = callbacks_.front();
   callbacks_.pop_front();
   if (callbacks_.empty())
     pending_op_ = OPERATION_NONE;
 
   front.callback->Run(result);
 }
 
 }  // namespace ppapi