Fix key repeat on linux.

ui/events/event.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_EVENTS_EVENT_H_
 #define UI_EVENTS_EVENT_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 941 matching lines @@
   //
   // This value represents the meaning of a key, which is either a Unicode
   // character, or a named DomKey:: value.
   // This is not necessarily initialized when the event is constructed;
   // it may be set only if and when GetCharacter() or GetDomKey() is called.
   mutable DomKey key_ = DomKey::NONE;
 
   std::unique_ptr<Properties> properties_;
 
   static KeyEvent* last_key_event_;
+#if defined(USE_X11)
+  static KeyEvent* last_ibus_key_event_;
+#endif
 };
 
 class EVENTS_EXPORT ScrollEvent : public MouseEvent {
  public:
   explicit ScrollEvent(const base::NativeEvent& native_event);
   template <class T>
   ScrollEvent(const ScrollEvent& model,
               T* source,
               T* target)
       : MouseEvent(model, source, target),
@@ skipping 78 matching lines @@
   // dispatched. This field gets a non-zero value only for gestures that are
   // released through TouchDispositionGestureFilter::SendGesture. The gesture
   // events that aren't fired directly in response to processing a touch-event
   // (e.g. timer fired ones), this id is zero. See crbug.com/618738.
   uint32_t unique_touch_event_id_;
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_EVENT_H_