IME (input method editor) support for Aura, part 3 of 3: Use ui::InputMethod in ash.

ui/aura/event.h

Index: ui/aura/event.h
diff --git a/ui/aura/event.h b/ui/aura/event.h
index 2f36516c25fd4abdcbee90cbcad14539285be1d9..b9e4ecc0630ffd011a9fa4cd2e9df785203c6b71 100644
--- a/ui/aura/event.h
+++ b/ui/aura/event.h
@@ -39,6 +39,9 @@ class AURA_EXPORT Event {
   bool IsCapsLockDown() const { return (flags_ & ui::EF_CAPS_LOCK_DOWN) != 0; }
   bool IsAltDown() const { return (flags_ & ui::EF_ALT_DOWN) != 0; }
 
+  // Returns true if the event has a valid |native_event_|.
+  bool HasNativeEvent() const;
+
  protected:
   Event(ui::EventType type, int flags);
   Event(const base::NativeEvent& native_event, ui::EventType type, int flags);