[Sync] Plumb initial type set from engine to DTM.

components/browser_sync/profile_sync_service_mock.h

 // Copyright (c) 2012 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_BROWSER_SYNC_PROFILE_SYNC_SERVICE_MOCK_H_
 #define COMPONENTS_BROWSER_SYNC_PROFILE_SYNC_SERVICE_MOCK_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 15 matching lines @@
   explicit ProfileSyncServiceMock(InitParams init_params);
   // The second constructor defers to the first one. Use it when you need to
   // create a StrictMock or NiceMock of ProfileSyncServiceMock, because those
   // template classes cannot handle the input class having constructors with
   // arguments passed by value. Otherwise use the constructor above for cleaner
   // code.
   explicit ProfileSyncServiceMock(InitParams* init_params);
 
   virtual ~ProfileSyncServiceMock();
 
-  MOCK_METHOD4(
+  MOCK_METHOD5(
       OnEngineInitialized,
-      void(const syncer::WeakHandle<syncer::JsBackend>&,
+      void(syncer::ModelTypeSet initial_types,
+           const syncer::WeakHandle<syncer::JsBackend>&,
            const syncer::WeakHandle<syncer::DataTypeDebugInfoListener>&,
            const std::string&,
            bool));
   MOCK_METHOD0(OnSyncCycleCompleted, void());
   MOCK_METHOD2(OnUserChoseDatatypes,
                void(bool sync_everything, syncer::ModelTypeSet chosen_types));
 
   MOCK_METHOD2(OnUnrecoverableError,
                void(const tracked_objects::Location& location,
                     const std::string& message));
@@ skipping 47 matching lines @@
   MOCK_METHOD1(SetDecryptionPassphrase, bool(const std::string& passphrase));
   MOCK_METHOD2(SetEncryptionPassphrase,
                void(const std::string& passphrase, PassphraseType type));
 
   MOCK_METHOD0(OnSetupInProgressHandleDestroyed, void());
 };
 
 }  // namespace browser_sync
 
 #endif  // COMPONENTS_BROWSER_SYNC_PROFILE_SYNC_SERVICE_MOCK_H_