Hook up Autofill Backend interface to SyncableServices

components/autofill/browser/webdata/autofill_backend_delegate.cc

+// Copyright (c) 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.
+
+#include "components/autofill/browser/webdata/autofill_backend_delegate.h"
+
+#include "components/autofill/browser/webdata/autofill_webdata_backend.h"
+#include "components/autofill/browser/webdata/autofill_webdata_service.h"
+#include "components/autofill/browser/webdata/autofill_webdata_service_observer.h"
+#include "components/webdata/common/web_database.h"
+
+using base::Bind;
+using content::BrowserThread;
+
+namespace autofill {
+
+AutofillBackendDelegate::AutofillBackendDelegate(
+    base::WeakPtr<WebDatabase> db,
+    base::WeakPtr<AutofillWebDataBackend> autofill_backend)
+    : web_database_(db),
+      autofill_backend_(autofill_backend) {
+}
+
+AutofillBackendDelegate::~AutofillBackendDelegate() {
+}
+
+WebDatabase* AutofillBackendDelegate::GetDatabase() {
+  return web_database_.get();
+}
+
+void AutofillBackendDelegate::AddObserver(
+    AutofillWebDataServiceObserverOnDBThread* observer) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB));
+  if (autofill_backend_.get())
+    autofill_backend_->AddObserver(observer);
+}
+
+void AutofillBackendDelegate::RemoveObserver(
+    AutofillWebDataServiceObserverOnDBThread* observer) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB));
+  if (autofill_backend_.get())
+    autofill_backend_->RemoveObserver(observer);
+}
+
+void AutofillBackendDelegate::RemoveExpiredFormElements() {
+  if (!autofill_backend_.get())
+    return;
+
+  WebDatabase::State state =
+      autofill_backend_->RemoveExpiredFormElementsImpl(web_database_);
+
+  if (state == WebDatabase::COMMIT_NEEDED) {
+    web_database_->CommitTransaction();
+    web_database_->BeginTransaction();
+  }
+}
+
+void AutofillBackendDelegate::NotifyOfMultipleAutofillChanges(
+    AutofillWebDataService* web_data_service) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB));
+
+  if (!web_data_service)
+    return;
+
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      Bind(&AutofillWebDataService::NotifyAutofillMultipleChangedOnUIThread,
+           make_scoped_refptr(web_data_service)));
+}
+
+} // namespace autofill