DevTools: Support async call stacks for scripted animation events (like scroll).

Source/core/dom/ScriptedAnimationController.cpp

Index: Source/core/dom/ScriptedAnimationController.cpp
diff --git a/Source/core/dom/ScriptedAnimationController.cpp b/Source/core/dom/ScriptedAnimationController.cpp
index 1838e6d311362305a94b5cc7b3e74130d34a34f5..7f38884b1e070f298737e05dfcd5252850c6f113 100644
--- a/Source/core/dom/ScriptedAnimationController.cpp
+++ b/Source/core/dom/ScriptedAnimationController.cpp
@@ -123,6 +123,8 @@ void ScriptedAnimationController::dispatchEvents()
             window->dispatchEvent(events[i], nullptr);
         else
             eventTarget->dispatchEvent(events[i]);
+
+        InspectorInstrumentation::didDispatchEvent(eventTarget, events[i].get());
     }
 }
 
@@ -176,6 +178,7 @@ void ScriptedAnimationController::serviceScriptedAnimations(double monotonicTime
 
 void ScriptedAnimationController::enqueueEvent(PassRefPtrWillBeRawPtr<Event> event)
 {
+    InspectorInstrumentation::didEnqueueEvent(event->target(), event.get());
     m_eventQueue.append(event);
     scheduleAnimationIfNeeded();
 }