[Do not commit] Experiment to test for cache misses during recursion

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

Index: third_party/WebKit/Source/core/paint/PrePaintTreeWalk.h
diff --git a/third_party/WebKit/Source/core/paint/PrePaintTreeWalk.h b/third_party/WebKit/Source/core/paint/PrePaintTreeWalk.h
index 603fad7e109f1b0a285118950b6940738d61432e..76de2c73250d2928e204a39a26ad16c2d2971775 100644
--- a/third_party/WebKit/Source/core/paint/PrePaintTreeWalk.h
+++ b/third_party/WebKit/Source/core/paint/PrePaintTreeWalk.h
@@ -25,8 +25,8 @@ class PrePaintTreeWalk {
   // Throttled rendering (see: FrameView::shouldThrottleRendering()) can prevent
   // updating a subtree. We return true if the subtree was fully walked/updated,
   // and false if the walk was interrupted by throttling.
-  bool walk(FrameView&, const PrePaintTreeWalkContext&);
-  bool walk(const LayoutObject&, const PrePaintTreeWalkContext&);
+  bool walk(FrameView&, PrePaintTreeWalkContext&);
+  bool walk(const LayoutObject&, PrePaintTreeWalkContext&);
 
   PaintPropertyTreeBuilder m_propertyTreeBuilder;
   PaintInvalidator m_paintInvalidator;