Add use counters for lots of DOM APIs.

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

Index: third_party/WebKit/Source/core/css/FontFace.idl
diff --git a/third_party/WebKit/Source/core/css/FontFace.idl b/third_party/WebKit/Source/core/css/FontFace.idl
index 6921a18f620ff1dd2328ac4a5842f0d8c1e72eae..002a118120e6935af8ef06480caf945bae1e28bb 100644
--- a/third_party/WebKit/Source/core/css/FontFace.idl
+++ b/third_party/WebKit/Source/core/css/FontFace.idl
@@ -46,16 +46,16 @@ enum FontFaceLoadStatus {
     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;
 };