Add use counters for lots of DOM APIs.

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

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 28 matching lines @@
 
 // TODO(foolip): This interface should be [Exposed=Window,Worker].
 [
     ActiveScriptWrappable,
     DependentLifetime,
     // FIXME: This should be (DOMString or BinaryData), where BinaryData is typedef of (ArrayBuffer or ArrayBufferView)
     Constructor(DOMString family, (DOMString or ArrayBuffer or ArrayBufferView) source, optional FontFaceDescriptors descriptors),
     ConstructorCallWith=ExecutionContext,
     MeasureAs=FontFaceConstructor,
 ] interface FontFace {
-    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString family;
-    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString style;
-    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString weight;
-    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString stretch;
-    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString unicodeRange;
-    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString variant;
-    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString featureSettings;
+    [RaisesException=Setter, SetterCallWith=ExecutionContext, MeasureAs=FontFaceAPI] attribute DOMString family;
+    [RaisesException=Setter, SetterCallWith=ExecutionContext, MeasureAs=FontFaceAPI] attribute DOMString style;
+    [RaisesException=Setter, SetterCallWith=ExecutionContext, MeasureAs=FontFaceAPI] attribute DOMString weight;
+    [RaisesException=Setter, SetterCallWith=ExecutionContext, MeasureAs=FontFaceAPI] attribute DOMString stretch;
+    [RaisesException=Setter, SetterCallWith=ExecutionContext, MeasureAs=FontFaceAPI] attribute DOMString unicodeRange;
+    [RaisesException=Setter, SetterCallWith=ExecutionContext, MeasureAs=FontFaceAPI] attribute DOMString variant;
+    [RaisesException=Setter, SetterCallWith=ExecutionContext, MeasureAs=FontFaceAPI] attribute DOMString featureSettings;
 
-    readonly attribute FontFaceLoadStatus status;
+    [MeasureAs=FontFaceAPI] readonly attribute FontFaceLoadStatus status;
 
-    [CallWith=ScriptState] Promise<FontFace> load();
-    [CallWith=ScriptState] readonly attribute Promise<FontFace> loaded;
+    [CallWith=ScriptState, MeasureAs=FontFaceAPI] Promise<FontFace> load();
+    [CallWith=ScriptState, MeasureAs=FontFaceAPI] readonly attribute Promise<FontFace> loaded;
 };