[sync] skeleton implementation of TypedURLSyncBridge

chrome/browser/sync/chrome_sync_client.cc

 // Copyright 2015 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 "chrome/browser/sync/chrome_sync_client.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 533 matching lines @@
       return WeakPtr<syncer::ModelTypeSyncBridge>();
     case syncer::AUTOFILL:
       return autofill::AutocompleteSyncBridge::FromWebDataService(
           web_data_service_.get());
 #if defined(OS_CHROMEOS)
     case syncer::PRINTERS:
       return chromeos::PrintersManagerFactory::GetForBrowserContext(profile_)
           ->GetSyncBridge()
           ->AsWeakPtr();
 #endif  // defined(OS_CHROMEOS)
+    case syncer::TYPED_URLS:
+      // TODO(gangwu):implement TypedURLSyncBridge and return real
+      // TypedURLSyncBridge here.
+      return base::WeakPtr<syncer::ModelTypeSyncBridge>();
     default:
       NOTREACHED();
       return WeakPtr<syncer::ModelTypeSyncBridge>();
   }
 }
 
 scoped_refptr<syncer::ModelSafeWorker>
 ChromeSyncClient::CreateModelWorkerForGroup(syncer::ModelSafeGroup group) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   switch (group) {
@@ skipping 183 matching lines @@
   sync_service->RegisterDataTypeController(
       base::MakeUnique<SupervisedUserSyncDataTypeController>(
           syncer::SUPERVISED_USER_SETTINGS, error_callback, this, profile_));
   sync_service->RegisterDataTypeController(
       base::MakeUnique<SupervisedUserSyncDataTypeController>(
           syncer::SUPERVISED_USER_WHITELISTS, error_callback, this, profile_));
 #endif  // BUILDFLAG(ENABLE_SUPERVISED_USERS)
 }
 
 }  // namespace browser_sync