Remove use counters for Element methods that have been settled in spec

third_party/WebKit/Source/core/dom/Element.idl

Index: third_party/WebKit/Source/core/dom/Element.idl
diff --git a/third_party/WebKit/Source/core/dom/Element.idl b/third_party/WebKit/Source/core/dom/Element.idl
index e43db09bbd518d01d25377deb9a0d2ece0af346a..7b8486e4c769647278916b7b0deb76c08fab6227 100644
--- a/third_party/WebKit/Source/core/dom/Element.idl
+++ b/third_party/WebKit/Source/core/dom/Element.idl
@@ -39,7 +39,7 @@ interface Element : Node {
     [RuntimeEnabled=PointerEvent, RaisesException] void setPointerCapture (long pointerId);
     [RuntimeEnabled=PointerEvent, RaisesException] void releasePointerCapture (long pointerId);
 
-    [MeasureAs=HasAttributes] boolean hasAttributes();
+    boolean hasAttributes();
     [SameObject, PerWorldBindings, ImplementedAs=attributesForBindings] readonly attribute NamedNodeMap attributes;
     DOMString? getAttribute(DOMString name);
     DOMString? getAttributeNS(DOMString? namespaceURI, DOMString localName);
@@ -50,24 +50,28 @@ interface Element : Node {
     boolean hasAttribute(DOMString name);
     boolean hasAttributeNS(DOMString? namespaceURI, DOMString localName);
 
-    [MeasureAs=ElementGetAttributeNode] Attr? getAttributeNode(DOMString name);
-    [MeasureAs=ElementGetAttributeNodeNS] Attr? getAttributeNodeNS(DOMString? namespaceURI, DOMString localName);
-    [RaisesException, CustomElementCallbacks, MeasureAs=ElementSetAttributeNode] Attr? setAttributeNode(Attr attr);
-    [RaisesException, CustomElementCallbacks, MeasureAs=ElementSetAttributeNodeNS] Attr? setAttributeNodeNS(Attr attr);
-    [RaisesException, CustomElementCallbacks, MeasureAs=ElementRemoveAttributeNode] Attr removeAttributeNode(Attr attr);
+    Attr? getAttributeNode(DOMString name);
+    Attr? getAttributeNodeNS(DOMString? namespaceURI, DOMString localName);
+    [RaisesException, CustomElementCallbacks] Attr? setAttributeNode(Attr attr);
+    [RaisesException, CustomElementCallbacks] Attr? setAttributeNodeNS(Attr attr);
+    [RaisesException, CustomElementCallbacks] Attr removeAttributeNode(Attr attr);
 
     [RaisesException] Element? closest(DOMString selectors);
     [RaisesException] boolean matches(DOMString selectors);
+    [RaisesException, ImplementedAs=matches] boolean webkitMatchesSelector(DOMString selectors); // historical alias of .matches

[tkent, 2016/03/16 23:57:45]

Won't we discuss removing webkitMatchesSelector from the specification in the
future?

[philipj_slow, 2016/03/17 10:41:42]

Usage is now about 10%, and has for far roughly halved every year. If this
continues it will be ~0.01% in 10 years. By that time I think it's very unlikely
that anyone would bother removing an alias that has already been supported
interoperably for 10 years, at least I would argue against it.

But, I did hesitate about removing this counter because it could be interesting
to follow how usage drop over time. Because it's likely dominated by jQuery and
other libraries, it's a proxy for how old versions of these libraries decrease
over time. So I'll put the use counter back.

 
     HTMLCollection getElementsByTagName(DOMString localName);
     HTMLCollection getElementsByTagNameNS(DOMString? namespaceURI, DOMString localName);
     HTMLCollection getElementsByClassName(DOMString classNames);
 
+    [RaisesException, CustomElementCallbacks] Element? insertAdjacentElement(DOMString where, Element element);
+    [RaisesException] void insertAdjacentText(DOMString where, DOMString data);
+
     // DOM Parsing and Serialization
     // https://dvcs.w3.org/hg/innerhtml/raw-file/tip/index.html#extensions-to-the-element-interface
     [TreatNullAs=NullString, CustomElementCallbacks, RaisesException=Setter] attribute DOMString innerHTML;
     [TreatNullAs=NullString, CustomElementCallbacks, RaisesException=Setter] attribute DOMString outerHTML;
-    [CustomElementCallbacks, RaisesException, MeasureAs=InsertAdjacentHTML] void insertAdjacentHTML(DOMString position, DOMString text);
+    [CustomElementCallbacks, RaisesException] void insertAdjacentHTML(DOMString position, DOMString text);
 
     // Shadow DOM
     // http://w3c.github.io/webcomponents/spec/shadow/#extensions-to-element-interface
@@ -109,12 +113,8 @@ interface Element : Node {
     [RuntimeEnabled=ScrollCustomization] void setApplyScroll(ScrollStateCallback scrollStateCallback, NativeScrollBehavior nativeScrollBehavior);
     [RuntimeEnabled=ScrollCustomization] void setDistributeScroll(ScrollStateCallback scrollStateCallback, NativeScrollBehavior nativeScrollBehavior);
 
-    // Non-standard APIs
-    // https://www.w3.org/Bugs/Public/show_bug.cgi?id=19962
-    [RaisesException, CustomElementCallbacks, MeasureAs=InsertAdjacentElement] Element insertAdjacentElement(DOMString where, Element element);
-    [RaisesException, MeasureAs=InsertAdjacentText] void insertAdjacentText(DOMString where, DOMString text);
+    // Non-standard API
     [MeasureAs=ElementScrollIntoViewIfNeeded] void scrollIntoViewIfNeeded(optional boolean centerIfNeeded);
-    [RaisesException, ImplementedAs=matches, MeasureAs=ElementPrefixedMatchesSelector] boolean webkitMatchesSelector(DOMString selectors);
 
     // Experimental accessibility API
     [RuntimeEnabled=ComputedAccessibilityInfo] readonly attribute DOMString? computedRole;