Add use counters for lots of DOM APIs.

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

Index: third_party/WebKit/Source/core/html/HTMLMediaElement.idl
diff --git a/third_party/WebKit/Source/core/html/HTMLMediaElement.idl b/third_party/WebKit/Source/core/html/HTMLMediaElement.idl
index 2789e9a20c3b010f7ecca8889d23d143142010ae..4ba795d2c157ee0a5612d9d466f65c2f5c398483 100644
--- a/third_party/WebKit/Source/core/html/HTMLMediaElement.idl
+++ b/third_party/WebKit/Source/core/html/HTMLMediaElement.idl
@@ -38,14 +38,14 @@ enum CanPlayTypeResult { "" /* empty string */, "maybe", "probably" };
     [CEReactions, Reflect, URL] attribute DOMString src;
     // FIXME: attribute MediaProvider? srcObject; crbug.com/387740
     readonly attribute DOMString currentSrc;
-    [CEReactions, Reflect, ReflectOnly=("anonymous","use-credentials"), ReflectEmpty="anonymous", ReflectInvalid="anonymous"] attribute DOMString? crossOrigin;
+  [Measure, CEReactions, Reflect, ReflectOnly=("anonymous","use-credentials"), ReflectEmpty="anonymous", ReflectInvalid="anonymous"] attribute DOMString? crossOrigin;
     const unsigned short NETWORK_EMPTY = 0;
     const unsigned short NETWORK_IDLE = 1;
     const unsigned short NETWORK_LOADING = 2;
     const unsigned short NETWORK_NO_SOURCE = 3;
     [ImplementedAs=getNetworkState] readonly attribute unsigned short networkState;
     [CEReactions] attribute DOMString preload;
-    readonly attribute TimeRanges buffered;
+    [Measure] readonly attribute TimeRanges buffered;
     void load();
     CanPlayTypeResult canPlayType(DOMString type);
 
@@ -56,35 +56,35 @@ enum CanPlayTypeResult { "" /* empty string */, "maybe", "probably" };
     const unsigned short HAVE_FUTURE_DATA = 3;
     const unsigned short HAVE_ENOUGH_DATA = 4;
     [ImplementedAs=getReadyState] readonly attribute unsigned short readyState;
-    readonly attribute boolean seeking;
+    [Measure] readonly attribute boolean seeking;
 
     // playback state
-    attribute double currentTime;
+    [Measure] attribute double currentTime;
     // FIXME: void fastSeek(double time);
-    readonly attribute unrestricted double duration;
+    [Measure] readonly attribute unrestricted double duration;
     // FIXME: Date getStartDate(); crbug.com/312699
     readonly attribute boolean paused;
-    attribute double defaultPlaybackRate;
-    attribute double playbackRate;
-    readonly attribute TimeRanges played;
-    readonly attribute TimeRanges seekable;
-    readonly attribute boolean ended;
+    [Measure] attribute double defaultPlaybackRate;
+    [Measure] attribute double playbackRate;
+    [Measure] readonly attribute TimeRanges played;
+    [Measure] readonly attribute TimeRanges seekable;
+    [Measure] readonly attribute boolean ended;
     [CEReactions, Reflect] attribute boolean autoplay;
-    [CEReactions, Reflect] attribute boolean loop;
+  [Measure, CEReactions, Reflect] attribute boolean loop;
     [CallWith=ScriptState, ImplementedAs=playForBindings] Promise<void> play();
     void pause();
 
     // controls
-    [CEReactions, Reflect] attribute boolean controls;
-    [RaisesException=Setter] attribute double volume;
-    attribute boolean muted;
-    [CEReactions, Reflect=muted] attribute boolean defaultMuted;
+  [Measure, CEReactions, Reflect] attribute boolean controls;
+  [Measure, RaisesException=Setter] attribute double volume;
+  [Measure] attribute boolean muted;
+   [Measure, CEReactions, Reflect=muted] attribute boolean defaultMuted;
 
     // tracks
-    [SameObject, RuntimeEnabled=AudioVideoTracks] readonly attribute AudioTrackList audioTracks;
-    [SameObject, RuntimeEnabled=AudioVideoTracks] readonly attribute VideoTrackList videoTracks;
-    [SameObject] readonly attribute TextTrackList textTracks;
-    [RaisesException] TextTrack addTextTrack(TextTrackKind kind, optional DOMString label = "", optional DOMString language = "");
+   [Measure, SameObject, RuntimeEnabled=AudioVideoTracks] readonly attribute AudioTrackList audioTracks;
+   [Measure, SameObject, RuntimeEnabled=AudioVideoTracks] readonly attribute VideoTrackList videoTracks;
+   [Measure, SameObject] readonly attribute TextTrackList textTracks;
+   [Measure, RaisesException] TextTrack addTextTrack(TextTrackKind kind, optional DOMString label = "", optional DOMString language = "");
 
     // Non-standard APIs
     // The number of bytes consumed by the media decoder.