Revert 196987 "Don't invoke default actions for MouseEvents gene..."

trunk/Source/core/events/EventDispatcher.cpp

Index: trunk/Source/core/events/EventDispatcher.cpp
===================================================================
--- trunk/Source/core/events/EventDispatcher.cpp	(revision 197019)
+++ trunk/Source/core/events/EventDispatcher.cpp	(working copy)
@@ -206,13 +206,7 @@
     // Call default event handlers. While the DOM does have a concept of preventing
     // default handling, the detail of which handlers are called is an internal
     // implementation detail and not part of the DOM.
-
-    // The DOM Events spec says that events dispatched by JS (other than "click")
-    // should not have their default handlers invoked. (issue #423975)
-    // To begin with, only apply to mouse events.
-    bool isScriptedMouseEventOtherThanClick = m_event->isMouseEvent() && toMouseEvent(*m_event).fromScript() && toMouseEvent(*m_event).type() != EventTypeNames::click;
-
-    if (!m_event->defaultPrevented() && !m_event->defaultHandled() && !isScriptedMouseEventOtherThanClick) {
+    if (!m_event->defaultPrevented() && !m_event->defaultHandled()) {
         // Non-bubbling events call only one default event handler, the one for the target.
         m_node->willCallDefaultEventHandler(*m_event);
         m_node->defaultEventHandler(m_event.get());