Get drag and drop working for win aura.

ui/views/widget/desktop_aura/desktop_native_widget_aura.cc

Index: ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
===================================================================
--- ui/views/widget/desktop_aura/desktop_native_widget_aura.cc	(revision 171535)
+++ ui/views/widget/desktop_aura/desktop_native_widget_aura.cc	(working copy)
@@ -15,6 +15,7 @@
 #include "ui/compositor/layer.h"
 #include "ui/gfx/canvas.h"
 #include "ui/native_theme/native_theme.h"
+#include "ui/views/drag_utils.h"
 #include "ui/views/ime/input_method.h"
 #include "ui/views/widget/desktop_aura/desktop_root_window_host.h"
 #include "ui/views/widget/native_widget_aura_window_observer.h"
@@ -371,11 +372,13 @@
   return false;
 }
 
-void DesktopNativeWidgetAura::RunShellDrag(View* view,
+void DesktopNativeWidgetAura::RunShellDrag(
+    View* view,
                             const ui::OSExchangeData& data,
                             const gfx::Point& location,
                             int operation,
                             ui::DragDropTypes::DragEventSource source) {
+  views::RunShellDrag(window_, data, location, operation, source);
 }
 
 void DesktopNativeWidgetAura::SchedulePaintInRect(const gfx::Rect& rect) {