Fix image map focus ring painting

third_party/WebKit/Source/core/html/HTMLAreaElement.h

Index: third_party/WebKit/Source/core/html/HTMLAreaElement.h
diff --git a/third_party/WebKit/Source/core/html/HTMLAreaElement.h b/third_party/WebKit/Source/core/html/HTMLAreaElement.h
index 2fd276aefd03775f6ade306d474e726df01f6ab2..6756f659416e7904f839780f4c193ea8b655ccfc 100644
--- a/third_party/WebKit/Source/core/html/HTMLAreaElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLAreaElement.h
@@ -40,10 +40,10 @@ public:
 
     bool isDefault() const { return m_shape == Default; }
 
-    bool pointInArea(LayoutPoint, const LayoutSize& containerSize);
+    bool pointInArea(const LayoutPoint&);
 
-    LayoutRect computeRect(const LayoutObject*) const;
-    Path computePath(const LayoutObject*) const;
+    LayoutRect computeAbsoluteRect() const;
+    const Path& getPath() const;
 
     // The parent map's image.
     HTMLImageElement* imageElement() const;
@@ -58,14 +58,13 @@ private:
     bool layoutObjectIsFocusable() const override;
     void updateFocusAppearance(SelectionBehaviorOnFocus) override;
     void setFocus(bool) override;
+    LayoutObject* imageElementLayoutObject() const;
 
     enum Shape { Default, Poly, Rect, Circle };
-    Path getRegion(const LayoutSize&) const;
-    void invalidateCachedRegion();
+    void invalidateCachedPath();
 
-    OwnPtr<Path> m_region;
+    mutable OwnPtr<Path> m_path;
     Vector<double> m_coords;
-    LayoutSize m_lastSize;
     Shape m_shape;
 };