Add use counters for lots of DOM APIs.

third_party/WebKit/Source/core/css/CSSRule.idl

Index: third_party/WebKit/Source/core/css/CSSRule.idl
diff --git a/third_party/WebKit/Source/core/css/CSSRule.idl b/third_party/WebKit/Source/core/css/CSSRule.idl
index 23bc3a75ce63a9649be91108ec78ef7e93fb6171..b21d58b6a804d28c8a4eeda77e9da463eb6f2956 100644
--- a/third_party/WebKit/Source/core/css/CSSRule.idl
+++ b/third_party/WebKit/Source/core/css/CSSRule.idl
@@ -23,32 +23,32 @@
 [
     DependentLifetime,
 ] interface CSSRule {
-    const unsigned short STYLE_RULE = 1;
-    const unsigned short CHARSET_RULE = 2;
-    const unsigned short IMPORT_RULE = 3;
-    const unsigned short MEDIA_RULE = 4;
-    const unsigned short FONT_FACE_RULE = 5;
-    const unsigned short PAGE_RULE = 6;
+    [Measure] const unsigned short STYLE_RULE = 1;
+    [Measure] const unsigned short CHARSET_RULE = 2;
+    [Measure] const unsigned short IMPORT_RULE = 3;
+    [Measure] const unsigned short MEDIA_RULE = 4;
+    [Measure] const unsigned short FONT_FACE_RULE = 5;
+    [Measure] const unsigned short PAGE_RULE = 6;
     // TODO(foolip): Implement CSSMarginRule.
     // const unsigned short MARGIN_RULE = 9;
-    const unsigned short NAMESPACE_RULE = 10;
-    readonly attribute unsigned short type;
-    attribute DOMString cssText;
-    readonly attribute CSSRule? parentRule;
-    readonly attribute CSSStyleSheet? parentStyleSheet;
+    [Measure] const unsigned short NAMESPACE_RULE = 10;
+    [Measure] readonly attribute unsigned short type;
+    [Measure] attribute DOMString cssText;
+    [Measure] readonly attribute CSSRule? parentRule;
+    [Measure] readonly attribute CSSStyleSheet? parentStyleSheet;
 
     // CSS Animations
     // https://dev.w3.org/csswg/css-animations/#interface-cssrule
-    const unsigned short KEYFRAMES_RULE = 7;
-    const unsigned short KEYFRAME_RULE = 8;
+    [Measure] const unsigned short KEYFRAMES_RULE = 7;
+    [Measure] const unsigned short KEYFRAME_RULE = 8;
 
     // CSS Conditional Rules
     // https://dev.w3.org/csswg/css-conditional/#extentions-to-cssrule-interface
-    const unsigned short SUPPORTS_RULE = 12;
+    [Measure] const unsigned short SUPPORTS_RULE = 12;
 
     // CSS Device Adaptation
     // https://dev.w3.org/csswg/css-device-adapt/#css-rule-interface
-    [RuntimeEnabled=CSSViewport] const unsigned short VIEWPORT_RULE = 15;
+    [RuntimeEnabled=CSSViewport, Measure] const unsigned short VIEWPORT_RULE = 15;
 
     // Non-standard APIs
     const unsigned short WEBKIT_KEYFRAMES_RULE = 7;