Move Media Galleries FileAPI code out of webkit.

chrome/browser/media_galleries/mac/mtp_device_delegate_impl_mac.mm

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/media_galleries/mac/mtp_device_delegate_impl_mac.h"
 
 #include "base/memory/scoped_nsobject.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/media_galleries/mtp_device_delegate_impl.h"
 #include "chrome/browser/storage_monitor/image_capture_device.h"
 #include "chrome/browser/storage_monitor/image_capture_device_manager.h"
 #include "chrome/browser/storage_monitor/media_storage_util.h"
 #include "content/public/browser/browser_thread.h"
 #include "webkit/fileapi/async_file_util.h"
 
 namespace chrome {
 
 namespace {
 
 int kReadDirectoryTimeLimitSeconds = 20;
 
-using fileapi::MTPDeviceAsyncDelegate;
 typedef MTPDeviceAsyncDelegate::CreateSnapshotFileSuccessCallback
     CreateSnapshotFileSuccessCallback;
 typedef MTPDeviceAsyncDelegate::ErrorCallback ErrorCallback;
 typedef MTPDeviceAsyncDelegate::GetFileInfoSuccessCallback
     GetFileInfoSuccessCallback;
 typedef MTPDeviceAsyncDelegate::ReadDirectorySuccessCallback
     ReadDirectorySuccessCallback;
 
 }  // namespace
 
@@ skipping 375 matching lines @@
   bool cracked = MediaStorageUtil::CrackDeviceId(device_name,
                                                  &type, &device_id);
   DCHECK(cracked);
   DCHECK_EQ(MediaStorageUtil::MAC_IMAGE_CAPTURE, type);
 
   cb.Run(new MTPDeviceDelegateImplMac(device_id, device_location));
 }
 
 }  // namespace chrome