PlatformEventDispatcher::DispatchEvent() should return a PostDispatchAction

ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.cc

Index: ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.cc
diff --git a/ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.cc b/ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.cc
index ed7059a675af831ba1b7ccaebe27c2a2860d9b6e..4b1ee38ed5232348e393ee878a28f5d85f0f0ca2 100644
--- a/ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.cc
+++ b/ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.cc
@@ -145,7 +145,8 @@ class DesktopDragDropClientAuraX11::X11DragContext
 
   // ui::PlatformEventDispatcher:
   virtual bool CanDispatchEvent(const ui::PlatformEvent& event) override;
-  virtual uint32_t DispatchEvent(const ui::PlatformEvent& event) override;
+  virtual ui::PostDispatchAction DispatchEvent(
+      const ui::PlatformEvent& event) override;
 
   // The atom cache owned by our parent.
   ui::X11AtomCache* atom_cache_;
@@ -358,7 +359,8 @@ bool DesktopDragDropClientAuraX11::X11DragContext::CanDispatchEvent(
   return event->xany.window == source_window_;
 }
 
-uint32_t DesktopDragDropClientAuraX11::X11DragContext::DispatchEvent(
+ui::PostDispatchAction
+DesktopDragDropClientAuraX11::X11DragContext::DispatchEvent(
     const ui::PlatformEvent& event) {
   if (event->type == PropertyNotify &&
       event->xproperty.atom == atom_cache_->GetAtom("XdndActionList")) {