No media-file validation mode for DeviceMediaAsyncUtil.

chrome/browser/media_galleries/fileapi/mtp_file_stream_reader.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 CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_MTP_FILE_STREAM_READER_H_
 #define CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_MTP_FILE_STREAM_READER_H_
 
 #include "base/bind.h"
 #include "base/files/file.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "webkit/browser/blob/file_stream_reader.h"
 #include "webkit/browser/fileapi/file_system_url.h"
 #include "webkit/browser/webkit_storage_browser_export.h"
 
 namespace base {
 class FilePath;
 }
 
 namespace fileapi {
 class FileSystemContext;
 }
 
 class MTPFileStreamReader
     : public NON_EXPORTED_BASE(webkit_blob::FileStreamReader) {
  public:
   MTPFileStreamReader(fileapi::FileSystemContext* file_system_context,
                       const fileapi::FileSystemURL& url,
                       int64 initial_offset,
-                      const base::Time& expected_modification_time);
+                      const base::Time& expected_modification_time,
+                      bool do_media_header_validation);
 
   virtual ~MTPFileStreamReader();
 
   // FileStreamReader overrides.
   virtual int Read(net::IOBuffer* buf, int buf_len,
                    const net::CompletionCallback& callback) OVERRIDE;
   virtual int64 GetLength(
       const net::Int64CompletionCallback& callback) OVERRIDE;
 
  private:
@@ skipping 16 matching lines @@
   const base::Time expected_modification_time_;
 
   bool media_header_validated_;
 
   base::WeakPtrFactory<MTPFileStreamReader> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MTPFileStreamReader);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_MTP_FILE_STREAM_READER_H_