Allow posting a Task to Microtasks

Source/core/dom/MutationObserver.cpp

Index: Source/core/dom/MutationObserver.cpp
diff --git a/Source/core/dom/MutationObserver.cpp b/Source/core/dom/MutationObserver.cpp
index 6f4fb9ec0fe39db4359629b189ef4fc822bebdda..c95263007a22e90ae1c6eed461eee182fd90f2f4 100644
--- a/Source/core/dom/MutationObserver.cpp
+++ b/Source/core/dom/MutationObserver.cpp
@@ -42,6 +42,7 @@
 #include "core/dom/MutationRecord.h"
 #include "core/dom/Node.h"
 #include "core/inspector/InspectorInstrumentation.h"
+#include "platform/Task.h"
 #include "wtf/MainThread.h"
 
 namespace WebCore {
@@ -186,7 +187,7 @@ static MutationObserverSet& suspendedMutationObservers()
 static void activateObserver(PassRefPtr<MutationObserver> observer)
 {
     if (activeMutationObservers().isEmpty())
-        Microtask::enqueueMicrotask(&MutationObserver::deliverMutations);
+        Microtask::enqueueMicrotask(new Task(WTF::bind(&MutationObserver::deliverMutations)));

[abarth-chromium, 2014/04/18 16:01:04]

Maybe Microtask::enqueueMicrotask should have an overload that takes a
WTF::Closure and wraps it in a Task for you?

 
     activeMutationObservers().add(observer);
 }