Change the keyboard bounds when moving to another display.

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 817fa0d0f2752036a43b59ab9eb632b880b2cc78..2bfe473f19d4b875dcb8b1192dc932a91f3d89dd 100644
--- a/ui/keyboard/keyboard_controller.h
+++ b/ui/keyboard/keyboard_controller.h
@@ -159,6 +159,10 @@ class KEYBOARD_EXPORT KeyboardController : public ui::InputMethodObserver,
   void ShowAnimationFinished();
   void HideAnimationFinished();
 
+  // Called when the keyboard mode is set or the keyboard is moved to another
+  // display.
+  void AdjustKeyboardBounds();
+
   std::unique_ptr<KeyboardUI> ui_;
   KeyboardLayoutDelegate* layout_delegate_;
   std::unique_ptr<aura::Window> container_;