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

ui/aura/event_filter.h

Index: ui/aura/event_filter.h
diff --git a/ui/aura/event_filter.h b/ui/aura/event_filter.h
index da2c2d1059094bf31c5c75bc918868fd838e3007..f0b7263f45333bad21ba78d8ab66f9cedb8b0779 100644
--- a/ui/aura/event_filter.h
+++ b/ui/aura/event_filter.h
@@ -15,6 +15,7 @@ namespace aura {
 class KeyEvent;
 class MouseEvent;
 class TouchEvent;
+class TranslatedKeyEvent;
 class Window;
 
 // An object that filters events sent to an owner window. The filter can stop
@@ -45,7 +46,12 @@ class AURA_EXPORT EventFilter {
   // filter may still perform some action, the return value simply indicates
   // that further processing can occur.
 
+  // All filters except the one bound to a system IME (input method) should NOT
+  // consume a KeyEvent. Instead, they should handle a TranslatedKeyEvent.
   virtual bool PreHandleKeyEvent(Window* target, KeyEvent* event) = 0;
+  virtual bool PreHandleTranslatedKeyEvent(Window* target,
+                                           TranslatedKeyEvent* event) = 0;
+
   virtual bool PreHandleMouseEvent(Window* target, MouseEvent* event) = 0;
 
   // Returns a value other than ui::TOUCH_STATUS_UNKNOWN if the event is