Add use counters for lots of DOM APIs.

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

Index: third_party/WebKit/Source/core/html/HTMLElement.idl
diff --git a/third_party/WebKit/Source/core/html/HTMLElement.idl b/third_party/WebKit/Source/core/html/HTMLElement.idl
index cbf6d8716936a7148fbe4ed472b4311cb9720a49..2ffb50c83fdb5c0bea0ba80c5993ba7352807b0c 100644
--- a/third_party/WebKit/Source/core/html/HTMLElement.idl
+++ b/third_party/WebKit/Source/core/html/HTMLElement.idl
@@ -24,26 +24,26 @@ interface HTMLElement : Element {
     // metadata attributes
     [CEReactions, Reflect] attribute DOMString title;
     [CEReactions, Reflect] attribute DOMString lang;
-    [CEReactions] attribute boolean translate;
-    [CEReactions] attribute DOMString dir;
+  [Measure, CEReactions] attribute boolean translate;
+  [Measure, CEReactions] attribute DOMString dir;
     [SameObject, PerWorldBindings] readonly attribute DOMStringMap dataset;
 
     // user interaction
     [CEReactions, Reflect] attribute boolean hidden;
     [ImplementedAs=clickForBindings] void click();
-    [CEReactions, CustomElementCallbacks] attribute long tabIndex;
+  [Measure, CEReactions, CustomElementCallbacks] attribute long tabIndex;
     void focus();
     void blur();
-    [CEReactions, Reflect] attribute DOMString accessKey;
-    [CEReactions, CustomElementCallbacks] attribute boolean draggable;
-    [CEReactions, RuntimeEnabled=ContextMenu] attribute HTMLMenuElement? contextMenu;
-    [CEReactions] attribute boolean spellcheck;
+  [Measure, CEReactions, Reflect] attribute DOMString accessKey;
+  [Measure, CEReactions, CustomElementCallbacks] attribute boolean draggable;
+  [Measure, CEReactions, RuntimeEnabled=ContextMenu] attribute HTMLMenuElement? contextMenu;
+  [Measure, CEReactions] attribute boolean spellcheck;
 
     // HTMLElement implements ElementContentEditable
     // https://html.spec.whatwg.org/#contenteditable
-    [CEReactions, CustomElementCallbacks, RaisesException=Setter] attribute DOMString contentEditable;
-    [ImplementedAs=isContentEditableForBinding] readonly attribute boolean isContentEditable;
-    [RuntimeEnabled=InputModeAttribute, CEReactions, Reflect] attribute DOMString inputMode;
+  [Measure, CEReactions, CustomElementCallbacks, RaisesException=Setter] attribute DOMString contentEditable;
+  [Measure, ImplementedAs=isContentEditableForBinding] readonly attribute boolean isContentEditable;
+  [Measure, RuntimeEnabled=InputModeAttribute, CEReactions, Reflect] attribute DOMString inputMode;
 
     // CSSOM View Module
     // https://dev.w3.org/csswg/cssom-view/#extensions-to-the-htmlelement-interface
@@ -61,8 +61,8 @@ interface HTMLElement : Element {
     [RuntimeEnabled=CSSTypedOM] readonly attribute StylePropertyMap styleMap;
 
     // Non-standard APIs
-    [TreatNullAs=NullString, CustomElementCallbacks, RaisesException=Setter, MeasureAs=HTMLElementInnerText] attribute DOMString innerText;
-    [TreatNullAs=NullString, CustomElementCallbacks, RaisesException=Setter, MeasureAs=HTMLElementOuterText] attribute DOMString outerText;
+  [Measure, TreatNullAs=NullString, CustomElementCallbacks, RaisesException=Setter, MeasureAs=HTMLElementInnerText] attribute DOMString innerText;
+  [Measure, TreatNullAs=NullString, CustomElementCallbacks, RaisesException=Setter, MeasureAs=HTMLElementOuterText] attribute DOMString outerText;
     [CEReactions, Reflect, TreatNullAs=NullString, MeasureAs=PrefixedHTMLElementDropzone] attribute DOMString webkitdropzone;
 };