[Sync] Rename ModelTypeService to ModelTypeSyncBridge.

ios/chrome/browser/sync/ios_chrome_sync_client.mm

 // 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 "ios/chrome/browser/sync/ios_chrome_sync_client.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 309 matching lines @@
     case syncer::PASSWORDS: {
       return password_store_ ? password_store_->GetPasswordSyncableService()
                              : base::WeakPtr<syncer::SyncableService>();
     }
     default:
       NOTREACHED();
       return base::WeakPtr<syncer::SyncableService>();
   }
 }
 
-base::WeakPtr<syncer::ModelTypeService>
-IOSChromeSyncClient::GetModelTypeServiceForType(syncer::ModelType type) {
+base::WeakPtr<syncer::ModelTypeSyncBridge>
+IOSChromeSyncClient::GetSyncBridgeForModelType(syncer::ModelType type) {
   switch (type) {
     case syncer::DEVICE_INFO:
       return IOSChromeProfileSyncServiceFactory::GetForBrowserState(
                  browser_state_)
           ->GetDeviceInfoService()
           ->AsWeakPtr();
     default:
       NOTREACHED();
-      return base::WeakPtr<syncer::ModelTypeService>();
+      return base::WeakPtr<syncer::ModelTypeSyncBridge>();
   }
 }
 
 scoped_refptr<syncer::ModelSafeWorker>
 IOSChromeSyncClient::CreateModelWorkerForGroup(
     syncer::ModelSafeGroup group,
     syncer::WorkerLoopDestructionObserver* observer) {
   DCHECK_CURRENTLY_ON(web::WebThread::UI);
   switch (group) {
     case syncer::GROUP_DB:
@@ skipping 50 matching lines @@
         IOSChromeProfileSyncServiceFactory::GetForBrowserState(browser_state);
     if (profile_sync_service != nullptr) {
       const syncer::DeviceInfoTracker* tracker =
           profile_sync_service->GetDeviceInfoTracker();
       if (tracker != nullptr) {
         trackers->push_back(tracker);
       }
     }
   }
 }