Fix border radius on composited children.

third_party/WebKit/Source/core/paint/LayerClipRecorder.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/LayerClipRecorder.h"
 
 #include "core/layout/ClipRect.h"
 #include "core/layout/LayoutView.h"
 #include "core/paint/PaintLayer.h"
 #include "platform/geometry/IntRect.h"
@@ skipping 61 matching lines @@
                                ? &paintLayer
                                : paintLayer.parent();
        layer; layer = layer->parent()) {
     // Composited scrolling layers handle border-radius clip in the compositor
     // via a mask layer. We do not want to apply a border-radius clip to the
     // layer contents itself, because that would require re-rastering every
     // frame to update the clip. We only want to make sure that the mask layer
     // is properly clipped so that it can in turn clip the scrolled contents in
     // the compositor.
     if (layer->needsCompositedScrolling() &&
-        !(paintFlags & PaintLayerPaintingChildClippingMaskPhase))
+        !(paintFlags & PaintLayerPaintingChildClippingMaskPhase ||
+          paintFlags & PaintLayerPaintingAncestorClippingMaskPhase))
       break;
 
     if (layer->layoutObject()->hasOverflowClip() &&
         layer->layoutObject()->style()->hasBorderRadius() &&
         inContainingBlockChain(&paintLayer, layer)) {
       LayoutPoint delta(fragmentOffset);
       layer->convertToLayerCoords(localPaintingInfo.rootLayer, delta);
 
       // The PaintLayer's size is pixel-snapped if it is a LayoutBox. We can't
       // use a pre-snapped border rect for clipping, since
@@ skipping 10 matching lines @@
       break;
   }
 }
 
 LayerClipRecorder::~LayerClipRecorder() {
   m_graphicsContext.getPaintController().endItem<EndClipDisplayItem>(
       m_layoutObject, DisplayItem::clipTypeToEndClipType(m_clipType));
 }
 
 }  // namespace blink