Remove PlatformFile from ppapi

ppapi/proxy/file_mapping_resource_win.cc

 // 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.
 
 #include "ppapi/proxy/file_mapping_resource.h"
 
 #include "ppapi/c/pp_errors.h"
 
 namespace ppapi {
 namespace proxy {
 
 // static
 FileMappingResource::MapResult FileMappingResource::DoMapBlocking(
-    scoped_refptr<FileIOResource::FileHandleHolder> handle,
+    scoped_refptr<FileIOResource::FileHolder> file_holder,
     void* address_hint,
     int64_t length,
     uint32_t map_protection,
     uint32_t map_flags,
     int64_t offset) {
   // TODO(dmichael): Implement for Windows (crbug.com/83774).
   MapResult map_result;
   map_result.result = PP_ERROR_NOTSUPPORTED;
   return map_result;
 }
 
 // static
 int32_t FileMappingResource::DoUnmapBlocking(const void* address,
                                              int64_t length) {
   // TODO(dmichael): Implement for Windows (crbug.com/83774).
   return PP_ERROR_NOTSUPPORTED;
 }
 
 // static
 int64_t FileMappingResource::DoGetMapPageSize() {
   // TODO(dmichael): Implement for Windows (crbug.com/83774).
   return 0;
 }
 
 }  // namespace proxy
 }  // namespace ppapi