debugging for crbug.com/646539

third_party/WebKit/Source/core/style/CachedUAStyle.h

Index: third_party/WebKit/Source/core/style/CachedUAStyle.h
diff --git a/third_party/WebKit/Source/core/style/CachedUAStyle.h b/third_party/WebKit/Source/core/style/CachedUAStyle.h
index 347b4fe21869c5e43c7cff103248b5b0d7772781..7a2e52620308daa2f292ce26adf9884c0feafff6 100644
--- a/third_party/WebKit/Source/core/style/CachedUAStyle.h
+++ b/third_party/WebKit/Source/core/style/CachedUAStyle.h
@@ -43,15 +43,15 @@ public:
         return wrapUnique(new CachedUAStyle(style));
     }
 
-    BorderData border;
-    FillLayer backgroundLayers;
+    //BorderData border;
+    //FillLayer backgroundLayers;
     StyleColor backgroundColor;
 
 private:
     explicit CachedUAStyle(const ComputedStyle* style)
-        : border(style->border())
-        , backgroundLayers(style->backgroundLayers())
-        , backgroundColor(style->backgroundColor())
+        : //border(style->border())
+        //, backgroundLayers(style->backgroundLayers())
+         backgroundColor(style->backgroundColor())
     {
     }
 };