Avoid updating compositor animations in hitTest path

Source/core/frame/FrameView.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 2409 matching lines @@
     m_needsUpdateWidgetPositions = false;
 
     updateWidgetPositions();
 }
 
 void FrameView::updateAllLifecyclePhases()
 {
     frame().localFrameRoot()->view()->updateLifecyclePhasesInternal(AllPhases);
 }
 
-// TODO(chrishtr): add a scrolling update lifecycle phase.
-void FrameView::updateLifecycleToCompositingCleanPlusScrolling()
-{
-    frame().localFrameRoot()->view()->updateLifecyclePhasesInternal(OnlyUpToCompositingCleanPlusScrolling);

[esprehn, 2015/08/25 07:37:53]

This leaves the OnlyUpToCompositingCleanPlusScrolling code path as dead code?

-}
-
 void FrameView::updateLifecyclePhasesInternal(LifeCycleUpdateOption phases)
 {
     // This must be called from the root frame, since it recurses down, not up.
     // Otherwise the lifecycles of the frames might be out of sync.
     ASSERT(m_frame->isLocalRoot());
 
     // Updating layout can run script, which can tear down the FrameView.
     RefPtrWillBeRawPtr<FrameView> protector(this);
 
     updateStyleAndLayoutIfNeededRecursive();
@@ skipping 1523 matching lines @@
 
     if (!graphicsLayer)
         return;
 
     DeprecatedPaintLayer::mapRectToPaintInvalidationBacking(localFrame->contentLayoutObject(), paintInvalidationContainer, viewRect);
 
     graphicsLayerTimingRequests.add(graphicsLayer, Vector<std::pair<int64_t, WebRect>>()).storedValue->value.append(std::make_pair(m_frame->frameID(), enclosingIntRect(viewRect)));
 }
 
 } // namespace blink