Revert of Make all layout tests force composited

Source/web/WebSharedWorkerImpl.cpp

Index: Source/web/WebSharedWorkerImpl.cpp
diff --git a/Source/web/WebSharedWorkerImpl.cpp b/Source/web/WebSharedWorkerImpl.cpp
index bbd78a1a2ae54a6d24112033c8dc4a285313026c..8abbaa734ef24bd186600875d36d55c5a959b56d 100644
--- a/Source/web/WebSharedWorkerImpl.cpp
+++ b/Source/web/WebSharedWorkerImpl.cpp
@@ -191,9 +191,6 @@
     ASSERT(!m_webView);
     m_webView = WebView::create(0);
     m_webView->settings()->setOfflineWebApplicationCacheEnabled(RuntimeEnabledFeatures::applicationCacheEnabled());
-    // FIXME: http://crbug.com/363843. This needs to find a better way to
-    // not create graphics layers.
-    m_webView->settings()->setAcceleratedCompositingEnabled(false);
     // FIXME: Settings information should be passed to the Worker process from Browser process when the worker
     // is created (similar to RenderThread::OnCreateNewView).
     m_mainFrame = WebLocalFrame::create(this);