Cleanup: Remove some unneeded timer.h includes.

chrome/browser/extensions/api/image_writer_private/operation.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_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_OPERATION_H_
 #define CHROME_BROWSER_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_OPERATION_H_
 
 #include "base/callback.h"
 #include "base/files/file.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/md5.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/memory/weak_ptr.h"
 #include "base/task/cancelable_task_tracker.h"
-#include "base/timer/timer.h"
 #include "chrome/browser/extensions/api/image_writer_private/image_writer_utility_client.h"
 #include "chrome/common/extensions/api/image_writer_private.h"
 #include "third_party/zlib/google/zip_reader.h"
 
 namespace image_writer_api = extensions::api::image_writer_private;
 
 namespace base {
 class FilePath;
 }  // namespace base
 
@@ skipping 187 matching lines @@
 
   // CleanUp operations that must be run.  All these functions are run on the
   // FILE thread.
   std::vector<base::Closure> cleanup_functions_;
 };
 
 }  // namespace image_writer
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_OPERATION_H_