Introduce WorkerBackingThread

third_party/WebKit/Source/modules/ModulesInitializer.cpp

 // Copyright (c) 2014 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 "ModulesInitializer.h"
 
 #include "bindings/modules/v8/ModuleBindingsInitializer.h"
 #include "core/EventTypeNames.h"
 #include "core/dom/Document.h"
 #include "core/html/HTMLCanvasElement.h"
 #include "modules/EventModulesFactory.h"
 #include "modules/EventModulesNames.h"
 #include "modules/EventTargetModulesNames.h"
 #include "modules/IndexedDBNames.h"
 #include "modules/accessibility/AXObjectCacheImpl.h"
 #include "modules/canvas2d/CanvasRenderingContext2D.h"
+#include "modules/compositorworker/CompositorWorkerThread.h"
 #include "modules/filesystem/DraggedIsolatedFileSystemImpl.h"
 #include "modules/imagebitmap/ImageBitmapRenderingContext.h"
 #include "modules/offscreencanvas/OffscreenCanvas.h"
 #include "modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h"
 #include "modules/webdatabase/DatabaseManager.h"
 #include "modules/webgl/WebGL2RenderingContext.h"
 #include "modules/webgl/WebGLRenderingContext.h"
 
 namespace blink {
 
@@ skipping 26 matching lines @@
     // OffscreenCanvas context types must be registered with the OffscreenCanvas.
     OffscreenCanvas::registerRenderingContextFactory(adoptPtr(new OffscreenCanvasRenderingContext2D::Factory()));
 
     ASSERT(isInitialized());
 }
 
 void ModulesInitializer::shutdown()
 {
     ASSERT(isInitialized());
     DatabaseManager::terminateDatabaseThread();
+    CompositorWorkerThread::clearSharedBackingThread();
     CoreInitializer::shutdown();
 }
 
 } // namespace blink