Delay virtual keyboard hiding for 100ms

ui/keyboard/keyboard_controller.h

Index: ui/keyboard/keyboard_controller.h
diff --git a/ui/keyboard/keyboard_controller.h b/ui/keyboard/keyboard_controller.h
index 6022339c38072319d4dbf48a976b3d6904df8c3e..962d66366b4e2cc508699dd7ad66189eab29fed9 100644
--- a/ui/keyboard/keyboard_controller.h
+++ b/ui/keyboard/keyboard_controller.h
@@ -25,6 +25,8 @@ class TextInputClient;
 
 namespace keyboard {
 
+extern const int kHideKeyboardDelayMs;
+
 class KeyboardControllerObserver;
 class KeyboardControllerProxy;
 class KeyboardLayoutManager;
@@ -61,9 +63,16 @@ class KEYBOARD_EXPORT KeyboardController : public ui::InputMethodObserver,
   virtual void OnInputMethodDestroyed(
       const ui::InputMethod* input_method) OVERRIDE;
 
+  // Hides virtual keyboard and notifies observer bounds change.
+  // This functions should be called with a delay to avoid keyboard flicking

[kevers, 2013/08/26 15:50:18]

keyboard flicking --> layout flicker

[bshe, 2013/08/26 18:39:17]

Done.

+  // when the focus of input feild quickly change.

[sadrul, 2013/08/26 17:30:31]

*field

[bshe, 2013/08/26 18:39:17]

Done.

+  void HideKeyboard();
+
   scoped_ptr<KeyboardControllerProxy> proxy_;
   aura::Window* container_;
   ui::InputMethod* input_method_;
+  bool keyboard_visible_;
+  base::WeakPtrFactory<KeyboardController> weak_factory_;
 
   ObserverList<KeyboardControllerObserver> observer_list_;