Prevent default actions for JS-generated mouse events other than click

Source/core/input/EventHandler.cpp

Index: Source/core/input/EventHandler.cpp
diff --git a/Source/core/input/EventHandler.cpp b/Source/core/input/EventHandler.cpp
index 41003478ecf59c73c7289fca2080a26f331f6996..3fe9aa2b976f8af09521a90276d088a2d5e772a2 100644
--- a/Source/core/input/EventHandler.cpp
+++ b/Source/core/input/EventHandler.cpp
@@ -1695,7 +1695,8 @@ bool EventHandler::dispatchDragEvent(const AtomicString& eventType, Node* dragTa
         event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(),
         0, MouseEvent::platformModifiersToButtons(event.modifiers()), nullptr, dataTransfer);
 
-    dragTarget->dispatchEvent(me.get(), IGNORE_EXCEPTION);
+    dragTarget->dispatchMouseEvent(me.get());
+
     return me->defaultPrevented();
 }