Random clean up in c/b/cros/drive.

chrome/browser/chromeos/drive/webkit_file_stream_reader_impl.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_CHROMEOS_DRIVE_WEBKIT_FILE_STREAM_READER_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_WEBKIT_FILE_STREAM_READER_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time.h"
 #include "chrome/browser/chromeos/drive/drive_file_stream_reader.h"
 #include "net/base/completion_callback.h"
 #include "webkit/blob/file_stream_reader.h"
 
 namespace base {
 class SequencedTaskRunner;
 }  // namespace base
 
 namespace drive {
 
 class ResourceEntry;
 
 namespace internal {
 
-
 // The implementation of webkit_blob::FileStreamReader for drive file system.
 // webkit_blob::FileStreamReader does not provide a way for explicit
 // initialization, hence the initialization of this class will be done lazily.
 // Note that when crbug.com/225339 is resolved, this class will be also
 // initialized explicitly.
 class WebkitFileStreamReaderImpl : public webkit_blob::FileStreamReader {
  public:
   WebkitFileStreamReaderImpl(
       const DriveFileStreamReader::FileSystemGetter& file_system_getter,
       base::SequencedTaskRunner* file_task_runner,
@@ skipping 42 matching lines @@
   // This should remain the last member so it'll be destroyed first and
   // invalidate its weak pointers before other members are destroyed.
   base::WeakPtrFactory<WebkitFileStreamReaderImpl> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(WebkitFileStreamReaderImpl);
 };
 
 }  // namespace internal
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_WEBKIT_FILE_STREAM_READER_IMPL_H_