Remove stale references to PlatformFile flags, errors or functions.

chrome/browser/media_galleries/fileapi/safe_audio_video_checker.h

 // Copyright 2013 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 CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SAFE_AUDIO_VIDEO_CHECKER_H_
 #define CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SAFE_AUDIO_VIDEO_CHECKER_H_
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/files/file.h"
 #include "base/memory/weak_ptr.h"
 #include "content/public/browser/utility_process_host_client.h"
 #include "webkit/browser/fileapi/copy_or_move_file_validator.h"
 
 namespace content {
 class UtilityProcessHost;
 }
 
 // Uses a utility process to validate a media file.  If the callback returns
-// PLATFORM_FILE_OK, then the file appears to be a valid media file. This does
+// File::FILE_OK, then the file appears to be a valid media file. This does
 // not attempt to decode the entire file, which may take a considerable amount
 // of time.  This class may be constructed on any thread, but should run on the
 // IO thread.
 class SafeAudioVideoChecker : public content::UtilityProcessHostClient {
  public:
   // Takes responsibility for closing |file|.
   SafeAudioVideoChecker(
       base::File file,
       const fileapi::CopyOrMoveFileValidator::ResultCallback& callback);
 
@@ skipping 25 matching lines @@
   base::File file_;
 
   const fileapi::CopyOrMoveFileValidator::ResultCallback callback_;
 
   base::WeakPtr<content::UtilityProcessHost> utility_process_host_;
 
   DISALLOW_COPY_AND_ASSIGN(SafeAudioVideoChecker);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SAFE_AUDIO_VIDEO_CHECKER_H_