Revert of Make all layout tests force composited

Source/web/WebEmbeddedWorkerImpl.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 32 matching lines @@
 #include "core/workers/WorkerScriptLoader.h"
 #include "core/workers/WorkerScriptLoaderClient.h"
 #include "core/workers/WorkerThreadStartupData.h"
 #include "modules/serviceworkers/ServiceWorkerThread.h"
 #include "platform/NotImplemented.h"
 #include "platform/SharedBuffer.h"
 #include "platform/heap/Handle.h"
 #include "platform/network/ContentSecurityPolicyParsers.h"
 #include "public/web/WebServiceWorkerContextClient.h"
 #include "public/web/WebServiceWorkerNetworkProvider.h"
-#include "public/web/WebSettings.h"
 #include "public/web/WebView.h"
 #include "public/web/WebWorkerPermissionClientProxy.h"
 #include "web/ServiceWorkerGlobalScopeClientImpl.h"
 #include "web/ServiceWorkerGlobalScopeProxy.h"
 #include "web/WebDataSourceImpl.h"
 #include "web/WebLocalFrameImpl.h"
 #include "web/WorkerPermissionClient.h"
 #include "wtf/Functional.h"
 
 using namespace WebCore;
@@ skipping 186 matching lines @@
 void WebEmbeddedWorkerImpl::prepareShadowPageForLoader()
 {
     // Create 'shadow page', which is never displayed and is used mainly to
     // provide a context for loading on the main thread.
     //
     // FIXME: This does mostly same as WebSharedWorkerImpl::initializeLoader.
     // This code, and probably most of the code in this class should be shared
     // with SharedWorker.
     ASSERT(!m_webView);
     m_webView = WebView::create(0);
-    // FIXME: http://crbug.com/363843. This needs to find a better way to
-    // not create graphics layers.
-    m_webView->settings()->setAcceleratedCompositingEnabled(false);
     m_mainFrame = WebLocalFrame::create(this);
     m_webView->setMainFrame(m_mainFrame);
 
     WebLocalFrameImpl* webFrame = toWebLocalFrameImpl(m_webView->mainFrame());
 
     // Construct substitute data source for the 'shadow page'. We only need it
     // to have same origin as the worker so the loading checks work correctly.
     CString content("");
     int length = static_cast<int>(content.length());
     RefPtr<SharedBuffer> buffer(SharedBuffer::create(content.data(), length));
@@ skipping 55 matching lines @@
     m_mainScriptLoader.clear();
 
     m_workerGlobalScopeProxy = ServiceWorkerGlobalScopeProxy::create(*this, *toWebLocalFrameImpl(m_mainFrame)->frame()->document(), *m_workerContextClient);
     m_loaderProxy = LoaderProxy::create(*this);
 
     m_workerThread = ServiceWorkerThread::create(*m_loaderProxy, *m_workerGlobalScopeProxy, startupData.release());
     m_workerThread->start();
 }
 
 } // namespace blink