Revert of Make all layout tests force composited

Source/core/inspector/InspectorOverlay.cpp

Index: Source/core/inspector/InspectorOverlay.cpp
diff --git a/Source/core/inspector/InspectorOverlay.cpp b/Source/core/inspector/InspectorOverlay.cpp
index e025608cce817ade1ffbf9af9044aee2e2caf6a5..419167e8b53792c9f94817315636b2c83b838c82 100644
--- a/Source/core/inspector/InspectorOverlay.cpp
+++ b/Source/core/inspector/InspectorOverlay.cpp
@@ -707,10 +707,6 @@
     overlaySettings.setScriptEnabled(true);
     overlaySettings.setPluginsEnabled(false);
     overlaySettings.setLoadsImagesAutomatically(true);
-    // FIXME: http://crbug.com/363843. Inspector should probably create its
-    // own graphics layers and attach them to the tree rather than going
-    // through some non-composited paint function.
-    overlaySettings.setAcceleratedCompositingEnabled(false);
 
     RefPtr<LocalFrame> frame = LocalFrame::create(dummyFrameLoaderClient, &m_overlayPage->frameHost(), 0);
     frame->setView(FrameView::create(frame.get()));