Create an AutofillBackend interface

components/autofill/browser/webdata/syncable_service_backend.h

Index: components/autofill/browser/webdata/syncable_service_backend.h
diff --git a/components/autofill/browser/webdata/syncable_service_backend.h b/components/autofill/browser/webdata/syncable_service_backend.h
new file mode 100644
index 0000000000000000000000000000000000000000..21e046cf96f26d9b761a3eaf442abc333203b2c3
--- /dev/null
+++ b/components/autofill/browser/webdata/syncable_service_backend.h
@@ -0,0 +1,41 @@
+// 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_SYNCABLE_SERVICE_BACKEND_H_
+#define COMPONENTS_AUTOFILL_BROWSER_WEBDATA_SYNCABLE_SERVICE_BACKEND_H_
+
+class WebDatabase;
+
+namespace autofill {
+
+class AutofillWebDataServiceObserverOnDBThread;
+
+// Intreface for doing Autofill work directly on the DB thread (used by

[Jói, 2013/05/07 19:39:41]

Intreface -> Interface

[Cait (Slow), 2013/05/07 20:14:56]

Done.

+// Sync, mostly), without fully exposing the AutofillWebDataBackend to clients.
+class SyncableServiceBackend {

[Jói, 2013/05/07 19:39:41]

Should this be named AutofillSyncableServiceBackend perhaps?

[Cait (Slow), 2013/05/07 20:14:56]

It's in the autofill namespace, so will usually appear as
autofill::SyncableServiceBackend, but if you think it would be clearer to have
"Autofill" as part of the class-name, I could rename it to
AutofillSyncableBackend.

[Jói, 2013/05/07 20:19:15]

With the namespace that seems fine to me; will leave the final word to Ilya.

+ public:
+  virtual ~SyncableServiceBackend() {}
+  // Get a raw ptr to the WebDatabase

[Jói, 2013/05/07 19:39:41]

ptr -> pointer, and please end the sentence with a period.

[Cait (Slow), 2013/05/07 20:14:56]

Done.

+  virtual WebDatabase* GetDatabaseOnDB() = 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 RemoveExpiredFormElementsWrapper() = 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
+  // it asynchronously notifies listeners on the UI thread.

[Jói, 2013/05/07 19:39:41]

it asynchronously -> asynchronously

[Cait (Slow), 2013/05/07 20:14:56]

Done.

+  virtual void NotifyOfMultipleAutofillChanges() = 0;
+};
+
+} // autofill

[Jói, 2013/05/07 19:39:41]

autofill -> namespace autofill

[Cait (Slow), 2013/05/07 20:14:56]

Done.

+
+#endif //COMPONENTS_AUTOFILL_BROWSER_WEBDATA_SYNCABLE_SERVICE_BACKEND_H_

[Jói, 2013/05/07 19:39:41]

two spaces before // and one after

[Cait (Slow), 2013/05/07 20:14:56]

Done.