Add StrictTypeChecking to CRC2D.{drawFocusIfNeeded,drawCustomFocusRing}

Source/core/html/canvas/CanvasRenderingContext2D.idl

Index: Source/core/html/canvas/CanvasRenderingContext2D.idl
diff --git a/Source/core/html/canvas/CanvasRenderingContext2D.idl b/Source/core/html/canvas/CanvasRenderingContext2D.idl
index 21d9ba1e50c3716dceb722be6725d81769a7e558..a651a1bc62206b9934b3e6eb905a27012da9d106 100644
--- a/Source/core/html/canvas/CanvasRenderingContext2D.idl
+++ b/Source/core/html/canvas/CanvasRenderingContext2D.idl
@@ -168,8 +168,8 @@ interface CanvasRenderingContext2D {
     [RaisesException] ImageData getImageData(float sx, float sy, float sw, float sh);
 
     // Focus rings
-    [RuntimeEnabled=ExperimentalCanvasFeatures] void drawFocusIfNeeded(Element element);
-    [RuntimeEnabled=ExperimentalCanvasFeatures] boolean drawCustomFocusRing(Element element);
+    [RuntimeEnabled=ExperimentalCanvasFeatures, StrictTypeChecking] void drawFocusIfNeeded(Element element);
+    [RuntimeEnabled=ExperimentalCanvasFeatures, StrictTypeChecking] boolean drawCustomFocusRing(Element element);
 
     [ImplementedAs=imageSmoothingEnabled, MeasureAs=PrefixedImageSmoothingEnabled] attribute boolean webkitImageSmoothingEnabled;
     [MeasureAs=UnprefixedImageSmoothingEnabled] attribute boolean imageSmoothingEnabled;