Remove some PlatformFile uses from NaCl.

components/nacl/browser/nacl_process_host.h

 // Copyright (c) 2012 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 COMPONENTS_NACL_BROWSER_NACL_PROCESS_HOST_H_
 #define COMPONENTS_NACL_BROWSER_NACL_PROCESS_HOST_H_
 
 #include "build/build_config.h"
 
 #include "base/files/file_path.h"
@@ skipping 135 matching lines @@
   // Returns false on failure.
   bool StartWithLaunchedProcess();
 
   // Message handlers for validation caching.
   void OnQueryKnownToValidate(const std::string& signature, bool* result);
   void OnSetKnownToValidate(const std::string& signature);
   void OnResolveFileToken(uint64 file_token_lo, uint64 file_token_hi,
                           IPC::Message* reply_msg);
   void FileResolved(const base::FilePath& file_path,
                     IPC::Message* reply_msg,
-                    const base::PlatformFile& file);
+                    base::File file);
 
 #if defined(OS_WIN)
   // Message handler for Windows hardware exception handling.
   void OnAttachDebugExceptionHandler(const std::string& info,
                                      IPC::Message* reply_msg);
   bool AttachDebugExceptionHandler(const std::string& info,
                                    IPC::Message* reply_msg);
 #endif
 
   // Called when the PPAPI IPC channels to the browser/renderer have been
@@ skipping 51 matching lines @@
   scoped_ptr<content::BrowserPpapiHost> ppapi_host_;
 
   int render_view_id_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClProcessHost);
 };
 
 }  // namespace nacl
 
 #endif  // COMPONENTS_NACL_BROWSER_NACL_PROCESS_HOST_H_