1 files changed, 11 insertions, 3 deletions
diff --git a/chromium/third_party/WebKit/Source/core/frame/WindowTimers.idl b/chromium/third_party/WebKit/Source/core/frame/WindowTimers.idl
index 744567d39e1..47f394fc249 100644
--- a/chromium/third_party/WebKit/Source/core/frame/WindowTimers.idl
+++ b/chromium/third_party/WebKit/Source/core/frame/WindowTimers.idl
@@ -25,13 +25,21 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+// http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#windowtimers
+
 [
-    NoInterfaceObject,
-    ImplementedAs=DOMWindowTimers
+    ImplementedAs=DOMWindowTimers,
+    LegacyTreatAsPartialInterface,
+    NoInterfaceObject, // Always used on target of 'implements'
 ] interface WindowTimers {
+    // FIXME: currently using [Custom] and |any| because overload algorithm
+    // can't handle Function/DOMString overload properly
+    // http://crbug.com/293561
+    // FIXME: would be clearer as a union type, like:
+    // typedef (Function or DOMString) Handler
+    // Needs spec update and better union support: http://crbug.com/240176
     [Custom] long setTimeout(any handler, [Default=Undefined] optional long timeout);
     void clearTimeout([Default=Undefined] optional long handle);
     [Custom] long setInterval(any handler, [Default=Undefined] optional long timeout);
     void clearInterval([Default=Undefined] optional long handle);
 };
-