Factor dart_init.cc out of dart_controller.cc

sky/engine/core/script/dart_controller.h

 // 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.
 
 #ifndef SKY_ENGINE_CORE_SCRIPT_DART_CONTROLLER_H_
 #define SKY_ENGINE_CORE_SCRIPT_DART_CONTROLLER_H_
 
 #include "base/callback_forward.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 17 matching lines @@
  public:
   DartController();
   ~DartController();
 
   static void InitVM();
 
   void RunFromLibrary(const String& name,
                       DartLibraryProvider* library_provider);
   void RunFromSnapshot(mojo::ScopedDataPipeConsumerHandle snapshot);
 
-  void ClearForClose();
   void CreateIsolateFor(PassOwnPtr<DOMDartState> dom_dart_state);
+  void Shutdown();
   void InstallView(View* view);
 
   DOMDartState* dart_state() const { return dom_dart_state_.get(); }
 
  private:
   void DidLoadMainLibrary(String url);
   void DidLoadSnapshot();
 
   OwnPtr<DOMDartState> dom_dart_state_;
   OwnPtr<BuiltinSky> builtin_sky_;
   OwnPtr<DartSnapshotLoader> snapshot_loader_;
 
   base::WeakPtrFactory<DartController> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DartController);
 };
 
 }
 
 #endif // SKY_ENGINE_CORE_SCRIPT_DART_CONTROLLER_H_