In components/autofill, move browser/ to core/browser/

components/autofill/browser/webdata/autofill_webdata_backend.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 COMPONENTS_AUTOFILL_BROWSER_WEBDATA_AUTOFILL_WEBDATA_BACKEND_H_
-#define COMPONENTS_AUTOFILL_BROWSER_WEBDATA_AUTOFILL_WEBDATA_BACKEND_H_
-
-class WebDatabase;
-
-namespace autofill {
-
-class AutofillWebDataServiceObserverOnDBThread;
-
-// Interface for doing Autofill work directly on the DB thread (used by
-// Sync, mostly), without fully exposing the AutofillWebDataBackend to clients.
-class AutofillWebDataBackend {
- public:
-  virtual ~AutofillWebDataBackend() {}
-
-  // Get a raw pointer to the WebDatabase.
-  virtual WebDatabase* GetDatabase() = 0;
-
-  // Add an observer to be notified of changes on the DB thread.
-  virtual void AddObserver(
-      AutofillWebDataServiceObserverOnDBThread* observer) = 0;
-
-  // Remove an observer.
-  virtual void RemoveObserver(
-      AutofillWebDataServiceObserverOnDBThread* observer) = 0;
-
-  // Remove expired elements from the database and commit if needed.
-  virtual void RemoveExpiredFormElements() = 0;
-
-  // Notifies listeners on the UI thread that multiple changes have been made to
-  // to Autofill records of the database.
-  // NOTE: This method is intended to be called from the DB thread. It
-  // asynchronously notifies listeners on the UI thread.
-  virtual void NotifyOfMultipleAutofillChanges() = 0;
-};
-
-} // namespace autofill
-
-#endif  // COMPONENTS_AUTOFILL_BROWSER_WEBDATA_AUTOFILL_WEBDATA_BACKEND_H_