Replace scoped_ptr with std::unique_ptr in //ui

ui/views/controls/button/image_button.h

Index: ui/views/controls/button/image_button.h
diff --git a/ui/views/controls/button/image_button.h b/ui/views/controls/button/image_button.h
index 71311fe08f432fbb4bbd188e2a233fb941311d67..014998c02a1a72aac736bf2c23b83f616c9e8df9 100644
--- a/ui/views/controls/button/image_button.h
+++ b/ui/views/controls/button/image_button.h
@@ -5,9 +5,10 @@
 #ifndef UI_VIEWS_CONTROLS_BUTTON_IMAGE_BUTTON_H_
 #define UI_VIEWS_CONTROLS_BUTTON_IMAGE_BUTTON_H_
 
+#include <memory>
+
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "ui/base/layout.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/views/controls/button/custom_button.h"
@@ -56,7 +57,7 @@ class VIEWS_EXPORT ImageButton : public CustomButton {
   void SetImageAlignment(HorizontalAlignment h_align,
                          VerticalAlignment v_align);
 
-  void SetFocusPainter(scoped_ptr<Painter> focus_painter);
+  void SetFocusPainter(std::unique_ptr<Painter> focus_painter);
 
   // The minimum size of the contents (not including the border). The contents
   // will be at least this size, but may be larger if the image itself is
@@ -113,7 +114,7 @@ class VIEWS_EXPORT ImageButton : public CustomButton {
   // resources.
   bool draw_image_mirrored_;
 
-  scoped_ptr<Painter> focus_painter_;
+  std::unique_ptr<Painter> focus_painter_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageButton);
 };