Plumb border radius through when computing clip visual rects.

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

 // Copyright 2015 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/PrePaintTreeWalk.h"
 
 #include "core/dom/DocumentLifecycle.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/layout/LayoutMultiColumnSpannerPlaceholder.h"
@@ skipping 103 matching lines @@
   if (isAncestorOfOrEqualTo(context.clip, ancestorState.clip()))
     return ClipRect(LayoutRect(LayoutRect::infiniteIntRect()));
 
   hasClip = true;
 
   PropertyTreeState localState(context.transform, context.clip, effect);
 
   // TODO(chrishtr): remove need for this.
   LayoutRect localRect(LayoutRect::infiniteIntRect());
 
-  LayoutRect rect(m_geometryMapper.sourceToDestinationVisualRect(
-      FloatRect(localRect), localState, ancestorState));
+  LayoutRect rect(m_geometryMapper
+                      .sourceToDestinationVisualRect(FloatRect(localRect),
+                                                     localState, ancestorState)
+                      .rect());
   rect.moveBy(-ancestorPaintOffset);
   return rect;
 }
 
 void PrePaintTreeWalk::invalidatePaintLayerOptimizationsIfNeeded(
     const LayoutObject& object,
     const PaintLayer& ancestorTransformedOrRootPaintLayer,
     PaintPropertyTreeBuilderContext& context) {
   if (!object.hasLayer())
     return;
@@ skipping 133 matching lines @@
           roundedIntPoint(context.treeBuilderContext.current.paintOffset);
       walk(*toFrameView(widget), context);
     }
     // TODO(pdr): Investigate RemoteFrameView (crbug.com/579281).
   }
 
   object.getMutableForPainting().clearPaintFlags();
 }
 
 }  // namespace blink