Cleanup: Remove chrome namespace for storage monitor and media galleries.

chrome/browser/media_galleries/fileapi/av_scanning_file_validator.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_AV_SCANNING_FILE_VALIDATOR_H_
 #define CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_AV_SCANNING_FILE_VALIDATOR_H_
 
 #include "base/basictypes.h"
 #include "webkit/browser/fileapi/copy_or_move_file_validator.h"
 
 namespace base {
 class FilePath;
 }  // namespace base
 
-namespace chrome {
-
 // This class supports AV scanning on post write validation.
 class AVScanningFileValidator : public fileapi::CopyOrMoveFileValidator {
  public:
   virtual ~AVScanningFileValidator();
 
   // Runs AV checks on the resulting file (Windows-only).
   // Subclasses will not typically override this method.
   virtual void StartPostWriteValidation(
       const base::FilePath& dest_platform_path,
       const ResultCallback& result_callback) OVERRIDE;
 
  protected:
   AVScanningFileValidator();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AVScanningFileValidator);
 };
 
-}  // namespace chrome
-
 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_AV_SCANNING_FILE_VALIDATOR_H_