Replace scoped_ptr with std::unique_ptr in //ui

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 3c0765e57f95665dc5116c4af2c4211e6708dc6f..ec46712e0ef3e017aa1aa2ebd361b3fcf5b4781c 100644
--- a/ui/keyboard/keyboard_controller.h
+++ b/ui/keyboard/keyboard_controller.h
@@ -5,9 +5,10 @@
 #ifndef UI_KEYBOARD_KEYBOARD_CONTROLLER_H_
 #define UI_KEYBOARD_KEYBOARD_CONTROLLER_H_
 
+#include <memory>
+
 #include "base/event_types.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "ui/aura/window_observer.h"
 #include "ui/base/ime/input_method_observer.h"
@@ -148,11 +149,11 @@ class KEYBOARD_EXPORT KeyboardController : public ui::InputMethodObserver,
   void ShowAnimationFinished();
   void HideAnimationFinished();
 
-  scoped_ptr<KeyboardUI> ui_;
-  scoped_ptr<aura::Window> container_;
+  std::unique_ptr<KeyboardUI> ui_;
+  std::unique_ptr<aura::Window> container_;
   // CallbackAnimationObserver should destructed before container_ because it
   // uses container_'s animator.
-  scoped_ptr<CallbackAnimationObserver> animation_observer_;
+  std::unique_ptr<CallbackAnimationObserver> animation_observer_;
 
   ui::InputMethod* input_method_;
   bool keyboard_visible_;