Add use counters for lots of DOM APIs.

third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.idl

Index: third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.idl
diff --git a/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.idl b/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.idl
index 8691a888fe4256ed0e34a9e888433e4e0eb4af36..f85a2ef190801b9090d18aa87a4c65ccd0099d8a 100644
--- a/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.idl
+++ b/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.idl
@@ -61,7 +61,7 @@ enum ImageSmoothingQuality {"low", "medium", "high"};
 
     // image smoothing
     [MeasureAs=UnprefixedImageSmoothingEnabled] attribute boolean imageSmoothingEnabled; // (default True)
-    attribute ImageSmoothingQuality imageSmoothingQuality; // (default "low")
+    [Measure] attribute ImageSmoothingQuality imageSmoothingQuality; // (default "low")
 
     // colors and styles (see also the CanvasDrawingStyles interface)
     attribute (DOMString or CanvasGradient or CanvasPattern) strokeStyle; // (default black)
@@ -84,25 +84,25 @@ enum ImageSmoothingQuality {"low", "medium", "high"};
     // path API (see also CanvasPathMethods)
     void beginPath();
     void fill(optional CanvasFillRule winding);
-    void fill(Path2D path, optional CanvasFillRule winding);
+    [Measure] void fill(Path2D path, optional CanvasFillRule winding);
     void stroke();
-    void stroke(Path2D path);
+    [Measure] void stroke(Path2D path);
     // Focus rings
-    void drawFocusIfNeeded(Element element);
-    void drawFocusIfNeeded(Path2D path, Element element);
+    [Measure] void drawFocusIfNeeded(Element element);
+    [Measure] void drawFocusIfNeeded(Path2D path, Element element);
 
     [RuntimeEnabled=ExperimentalCanvasFeatures] void scrollPathIntoView(optional Path2D path);
     void clip(optional CanvasFillRule winding);
-    void clip(Path2D path, optional CanvasFillRule winding);
+    [Measure] void clip(Path2D path, optional CanvasFillRule winding);
     boolean isPointInPath(unrestricted double x, unrestricted double y, optional CanvasFillRule winding);
-    boolean isPointInPath(Path2D path, unrestricted double x, unrestricted double y, optional CanvasFillRule winding);
-    boolean isPointInStroke(unrestricted double x, unrestricted double y);
-    boolean isPointInStroke(Path2D path, unrestricted double x, unrestricted double y);
+    [Measure] boolean isPointInPath(Path2D path, unrestricted double x, unrestricted double y, optional CanvasFillRule winding);
+    [Measure] boolean isPointInStroke(unrestricted double x, unrestricted double y);
+    [Measure] boolean isPointInStroke(Path2D path, unrestricted double x, unrestricted double y);
 
     // text (see also the CanvasDrawingStyles interface)
-    void fillText(DOMString text, unrestricted double x, unrestricted double y, optional unrestricted double maxWidth);
-    void strokeText(DOMString text, unrestricted double x, unrestricted double y, optional unrestricted double maxWidth);
-    TextMetrics measureText(DOMString text);
+    [Measure] void fillText(DOMString text, unrestricted double x, unrestricted double y, optional unrestricted double maxWidth);
+    [Measure] void strokeText(DOMString text, unrestricted double x, unrestricted double y, optional unrestricted double maxWidth);
+    [Measure] TextMetrics measureText(DOMString text);
 
     // drawing images
     [CallWith=ExecutionContext, RaisesException] void drawImage(CanvasImageSource image, unrestricted double x, unrestricted double y);
@@ -135,15 +135,15 @@ enum ImageSmoothingQuality {"low", "medium", "high"};
     attribute unrestricted double miterLimit; // (default 10)
 
     // dashed lines
-    void setLineDash(sequence<unrestricted double> dash);
-    sequence<unrestricted double> getLineDash();
-    attribute unrestricted double lineDashOffset;
+    [Measure] void setLineDash(sequence<unrestricted double> dash);
+    [Measure] sequence<unrestricted double> getLineDash();
+    [Measure] attribute unrestricted double lineDashOffset;
 
     // text
-    attribute DOMString font; // (default 10px sans-serif)
-    attribute DOMString textAlign; // "start", "end", "left", "right", "center" (default: "start")
-    attribute DOMString textBaseline; // "top", "hanging", "middle", "alphabetic", "ideographic", "bottom" (default: "alphabetic")
-    [RuntimeEnabled=ExperimentalCanvasFeatures] attribute DOMString direction; // "inherit", "rtl", "ltr" (default: "inherit")
+    [Measure] attribute DOMString font; // (default 10px sans-serif)
+    [Measure] attribute DOMString textAlign; // "start", "end", "left", "right", "center" (default: "start")
+    [Measure] attribute DOMString textBaseline; // "top", "hanging", "middle", "alphabetic", "ideographic", "bottom" (default: "alphabetic")
+  [Measure, RuntimeEnabled=ExperimentalCanvasFeatures] attribute DOMString direction; // "inherit", "rtl", "ltr" (default: "inherit")
 
 };