Add use counters for lots of DOM APIs.

third_party/WebKit/Source/core/html/HTMLFieldSetElement.idl

Index: third_party/WebKit/Source/core/html/HTMLFieldSetElement.idl
diff --git a/third_party/WebKit/Source/core/html/HTMLFieldSetElement.idl b/third_party/WebKit/Source/core/html/HTMLFieldSetElement.idl
index dcf557f543ef11dd8f601345c2feae7e4b69b9b9..1c97b694b77bca4ab00ea3c52f947f4b5ae096eb 100644
--- a/third_party/WebKit/Source/core/html/HTMLFieldSetElement.idl
+++ b/third_party/WebKit/Source/core/html/HTMLFieldSetElement.idl
@@ -22,16 +22,16 @@
 interface HTMLFieldSetElement : HTMLElement {
     [CEReactions, Reflect] attribute boolean disabled;
     [ImplementedAs=formOwner] readonly attribute HTMLFormElement? form;
-    [CEReactions, Reflect] attribute DOMString name;
+  [Measure, CEReactions, Reflect] attribute DOMString name;
 
-    readonly attribute DOMString type;
+  [Measure] readonly attribute DOMString type;
 
     [Measure] readonly attribute HTMLCollection elements;
 
-    readonly attribute boolean willValidate;
-    [SameObject] readonly attribute ValidityState validity;
-    readonly attribute DOMString validationMessage;
-    boolean checkValidity();
-    boolean reportValidity();
-    void setCustomValidity(DOMString error);
+    [MeasureAs=ValidationAPI] readonly attribute boolean willValidate;
+  [MeasureAs=ValidationAPI, SameObject] readonly attribute ValidityState validity;
+    [MeasureAs=ValidationAPI] readonly attribute DOMString validationMessage;
+    [MeasureAs=ValidationAPI] boolean checkValidity();
+    [MeasureAs=ValidationAPI] boolean reportValidity();
+    [MeasureAs=ValidationAPI] void setCustomValidity(DOMString error);
 };