Revert "Move some scroll invalidations to the paint invalidation phase"

Source/core/rendering/compositing/RenderLayerCompositor.cpp

 /*
  * Copyright (C) 2009, 2010 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 279 matching lines @@
     ASSERT(!hasAcceleratedCompositing());
 
     if (updateType >= CompositingUpdateAfterCompositingInputChange)
         CompositingInputsUpdater(rootRenderLayer()).update();
 
 #if ENABLE(ASSERT)
     CompositingInputsUpdater::assertNeedsCompositingInputsUpdateBitsCleared(rootRenderLayer());
 #endif
 }
 
-static void forceRecomputePaintInvalidationRectsIncludingNonCompositingDescendants(RenderObject* renderer)
-{
-    // We clear the previous paint invalidation rect as it's wrong (paint invaliation container
-    // changed, ...). Forcing a full invalidation will make us recompute it. Also we are not
-    // changing the previous position from our paint invalidation container, which is fine as
-    // we want a full paint invalidation anyway.
-    renderer->setPreviousPaintInvalidationRect(LayoutRect());
-    renderer->setShouldDoFullPaintInvalidation();
-
-    for (RenderObject* child = renderer->slowFirstChild(); child; child = child->nextSibling()) {
-        if (!child->isPaintInvalidationContainer())
-            forceRecomputePaintInvalidationRectsIncludingNonCompositingDescendants(child);
-    }
-}
-
-
 void RenderLayerCompositor::updateIfNeeded()
 {
     CompositingUpdateType updateType = m_pendingUpdateType;
     m_pendingUpdateType = CompositingUpdateNone;
 
     if (!hasAcceleratedCompositing()) {
         updateWithoutAcceleratedCompositing(updateType);
         return;
     }
 
@@ skipping 862 matching lines @@
     } else if (graphicsLayer == m_scrollLayer.get()) {
         name = "LocalFrame Scrolling Layer";
     } else {
         ASSERT_NOT_REACHED();
     }
 
     return name;
 }
 
 } // namespace blink