[Sync] Switch bots to run integ tests for autofill as USS.

components/autofill/core/browser/webdata/web_data_model_type_controller.cc

+// Copyright 2017 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/core/browser/webdata/web_data_model_type_controller.h"
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+
+using syncer::ModelType;
+using syncer::ModelTypeController;
+using syncer::SyncClient;
+
+namespace autofill {
+
+WebDataModelTypeController::WebDataModelTypeController(
+    ModelType type,
+    SyncClient* sync_client,
+    const scoped_refptr<base::SingleThreadTaskRunner>& model_thread,
+    const scoped_refptr<AutofillWebDataService>& web_data_service,
+    const BridgeFromWebData& bridge_from_web_data)
+    : ModelTypeController(type, sync_client, model_thread),
+      web_data_service_(web_data_service),
+      bridge_from_web_data_(bridge_from_web_data) {}
+
+WebDataModelTypeController::~WebDataModelTypeController() {}
+
+ModelTypeController::BridgeProvider
+WebDataModelTypeController::GetBridgeProvider() {
+  // As opposed to the default implementation, get the bridge on demand, the web
+  // data service requires us to be on the model thread.
+  return base::Bind(bridge_from_web_data_,
+                    base::RetainedRef(web_data_service_));
+}
+
+}  // namespace autofill