Implement CRC2D.scrollPathIntoView() on Canvas

Source/core/html/canvas/CanvasRenderingContext2D.h

Index: Source/core/html/canvas/CanvasRenderingContext2D.h
diff --git a/Source/core/html/canvas/CanvasRenderingContext2D.h b/Source/core/html/canvas/CanvasRenderingContext2D.h
index 022b9cf5189b763db2276fd6238e27192e41ae3a..11c99e22ce553f20bd608eefd5ed1c293c84ceb8 100644
--- a/Source/core/html/canvas/CanvasRenderingContext2D.h
+++ b/Source/core/html/canvas/CanvasRenderingContext2D.h
@@ -164,6 +164,9 @@ public:
     bool isPointInStroke(const float x, const float y);
     bool isPointInStroke(Path2D*, const float x, const float y, ExceptionState&);
 
+    void scrollPathIntoView();
+    void scrollPathIntoView(Path2D*, ExceptionState&);
+
     void clearRect(float x, float y, float width, float height);
     void fillRect(float x, float y, float width, float height);
     void strokeRect(float x, float y, float width, float height);
@@ -307,6 +310,8 @@ private:
     bool isPointInPathInternal(const Path&, const float x, const float y, const String& windingRuleString);
     bool isPointInStrokeInternal(const Path&, const float x, const float y);
 
+    void scrollPathIntoViewInternal(const Path&);
+
     void drawTextInternal(const String& text, float x, float y, bool fill, float maxWidth = 0, bool useMaxWidth = false);
 
     const Font& accessFont();
@@ -316,6 +321,7 @@ private:
     bool rectContainsTransformedRect(const FloatRect&, const FloatRect&) const;
 
     void inflateStrokeRect(FloatRect&) const;
+    void absoluteBoundingPathRect(const Path&, LayoutRect&) const;
 
     template<class T> void fullCanvasCompositedFill(const T&);
     template<class T> void fullCanvasCompositedDrawImage(T*, const FloatRect&, const FloatRect&, CompositeOperator);