chrome: Cleanup class/struct forward declarations

chrome/browser/profiles/profile_downloader.h

 // 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.
 
 #ifndef CHROME_BROWSER_PROFILES_PROFILE_DOWNLOADER_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_DOWNLOADER_H_
 
 #include <memory>
 #include <string>
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/strings/string16.h"
 #include "chrome/browser/image_decoder.h"
 #include "components/signin/core/browser/account_info.h"
 #include "components/signin/core/browser/account_tracker_service.h"
 #include "google_apis/gaia/oauth2_token_service.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "url/gurl.h"
 
 class ProfileDownloaderDelegate;
-class OAuth2AccessTokenFetcher;
 
 namespace net {
 class URLFetcher;
 }  // namespace net
 
 // Downloads user profile information. The profile picture is decoded in a
 // sandboxed process.
 class ProfileDownloader : public net::URLFetcherDelegate,
                           public ImageDecoder::ImageRequest,
                           public OAuth2TokenService::Observer,
@@ skipping 97 matching lines @@
   AccountInfo account_info_;
   SkBitmap profile_picture_;
   PictureStatus picture_status_;
   AccountTrackerService* account_tracker_service_;
   bool waiting_for_account_info_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileDownloader);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_DOWNLOADER_H_