Remove PlatformFile from ppapi

ppapi/proxy/file_mapping_resource.h

 // Copyright 2014 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_FILE_MAPPING_RESOURCE_H_
 #define PPAPI_PROXY_FILE_MAPPING_RESOURCE_H_
 
 #include "ppapi/proxy/file_io_resource.h"
 #include "ppapi/proxy/plugin_resource.h"
 #include "ppapi/proxy/ppapi_proxy_export.h"
@@ skipping 39 matching lines @@
   void OnMapCompleted(void** mapped_address_out_param,
                       int64_t length,
                       scoped_refptr<TrackedCallback> callback,
                       const MapResult& map_result);
 
   // These functions perform potentially blocking operations so they should not
   // be called on the main thread or while we hold the proxy lock. Their
   // implementation is platform specific. See file_mapping_resource_posix.cc and
   // file_mapping_resource_win.cc.
   static MapResult DoMapBlocking(
-      scoped_refptr<FileIOResource::FileHandleHolder> handle,
+      scoped_refptr<FileIOResource::FileHolder> file_holder,
       void* address_hint,
       int64_t length,
       uint32_t protection,
       uint32_t flags,
       int64_t offset);
   static int32_t DoUnmapBlocking(const void* address, int64_t length);
   // DoGetMapPageSize is platform-specific, but fast enough that we can call it
   // on the main thread with the lock.
   static int64_t DoGetMapPageSize();
 
   DISALLOW_COPY_AND_ASSIGN(FileMappingResource);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_FILE_MAPPING_RESOURCE_H_