Cleanup: Remove unneeded forward declarations from various chrome/browser subdirectories.

chrome/browser/webdata/autofill_profile_syncable_service.h

 // Copyright (c) 2011 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_WEBDATA_AUTOFILL_PROFILE_SYNCABLE_SERVICE_H_
 #define CHROME_BROWSER_WEBDATA_AUTOFILL_PROFILE_SYNCABLE_SERVICE_H_
 #pragma once
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 11 matching lines @@
 #include "chrome/browser/webdata/autofill_entry.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_types.h"
 
 class AutofillProfile;
 class AutofillTable;
 class ProfileSyncServiceAutofillTest;
 class WebDataService;
 
-namespace browser_sync {
-class UnrecoverableErrorHandler;
-}
-
 extern const char kAutofillProfileTag[];
 
 // The sync implementation for AutofillProfiles.
 // MergeDataAndStartSyncing() called first, it does cloud->local and
 // local->cloud syncs. Then for each cloud change we receive
 // ProcessSyncChanges() and for each local change Observe() is called.
 class AutofillProfileSyncableService
     : public SyncableService,
       public content::NotificationObserver,
       public base::NonThreadSafe {
@@ skipping 104 matching lines @@
 struct AutofillProfileSyncableService::DataBundle {
   DataBundle();
   ~DataBundle();
 
   std::vector<std::string> profiles_to_delete;
   std::vector<AutofillProfile*> profiles_to_update;
   std::vector<AutofillProfile*> profiles_to_add;
 };
 
 #endif  // CHROME_BROWSER_WEBDATA_AUTOFILL_PROFILE_SYNCABLE_SERVICE_H_