Add EF_IS_REPEAT flag to KeyEvent to handle repeated accelerators correctly.

ui/events/event.h

Index: ui/events/event.h
diff --git a/ui/events/event.h b/ui/events/event.h
index e39ba1e1e5a38b80a9e6dd951a1f0e2d3bae0831..dfd867ec4626935e93aa2277ac49099243d13f8c 100644
--- a/ui/events/event.h
+++ b/ui/events/event.h
@@ -81,6 +81,7 @@ class EVENTS_EXPORT Event {
   bool IsCapsLockDown() const { return (flags_ & EF_CAPS_LOCK_DOWN) != 0; }
   bool IsAltDown() const { return (flags_ & EF_ALT_DOWN) != 0; }
   bool IsAltGrDown() const { return (flags_ & EF_ALTGR_DOWN) != 0; }
+  bool IsRepeat() const { return (flags_ & EF_IS_REPEAT) != 0; }
 
   bool IsKeyEvent() const {
     return type_ == ET_KEY_PRESSED ||
@@ -581,6 +582,10 @@ class EVENTS_EXPORT KeyEvent : public Event {
   bool is_char_;
 
   uint16 character_;
+
+  static bool IsRepeated(const KeyEvent& event);
+
+  static KeyEvent* last_key_event_;
 };
 
 class EVENTS_EXPORT ScrollEvent : public MouseEvent {