Revert of Make all layout tests force composited

Source/core/testing/DummyPageHolder.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 16 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/testing/DummyPageHolder.h"
 
 #include "core/frame/DOMWindow.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
-#include "core/frame/Settings.h"
 #include "wtf/Assertions.h"
 
 namespace WebCore {
 
 PassOwnPtr<DummyPageHolder> DummyPageHolder::create(const IntSize& initialViewSize)
 {
     return adoptPtr(new DummyPageHolder(initialViewSize));
 }
 
 DummyPageHolder::DummyPageHolder(const IntSize& initialViewSize)
 {
     m_pageClients.chromeClient = &m_chromeClient;
     m_pageClients.contextMenuClient = &m_contextMenuClient;
     m_pageClients.editorClient = &m_editorClient;
     m_pageClients.dragClient = &m_dragClient;
     m_pageClients.inspectorClient = &m_inspectorClient;
     m_pageClients.backForwardClient = &m_backForwardClient;
 
     m_page = adoptPtrWillBeNoop(new Page(m_pageClients));
-    Settings& settings = m_page->settings();
-    // FIXME: http://crbug.com/363843. This needs to find a better way to
-    // not create graphics layers.
-    settings.setAcceleratedCompositingEnabled(false);
 
     m_frame = LocalFrame::create(&m_frameLoaderClient, &m_page->frameHost(), 0);
     m_frame->setView(FrameView::create(m_frame.get(), initialViewSize));
     m_frame->init();
 }
 
 DummyPageHolder::~DummyPageHolder()
 {
     m_page->willBeDestroyed();
     m_page.clear();
@@ skipping 17 matching lines @@
 {
     return *m_frame->view();
 }
 
 Document& DummyPageHolder::document() const
 {
     return *m_frame->domWindow()->document();
 }
 
 } // namespace WebCore