Replace scoped_ptr with std::unique_ptr in //ui

ui/views/controls/button/blue_button.cc

Index: ui/views/controls/button/blue_button.cc
diff --git a/ui/views/controls/button/blue_button.cc b/ui/views/controls/button/blue_button.cc
index 12ea638c16000ec4f30bde53e81502a51c71c73a..c0e8b9902d01c18d179c5255a676736588954713 100644
--- a/ui/views/controls/button/blue_button.cc
+++ b/ui/views/controls/button/blue_button.cc
@@ -51,10 +51,10 @@ const char* BlueButton::GetClassName() const {
   return BlueButton::kViewClassName;
 }
 
-scoped_ptr<LabelButtonBorder> BlueButton::CreateDefaultBorder() const {
+std::unique_ptr<LabelButtonBorder> BlueButton::CreateDefaultBorder() const {
   // Insets for splitting the images.
   const gfx::Insets insets(5);
-  scoped_ptr<LabelButtonAssetBorder> button_border(
+  std::unique_ptr<LabelButtonAssetBorder> button_border(
       new LabelButtonAssetBorder(style()));
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
   button_border->SetPainter(false, STATE_NORMAL, Painter::CreateImagePainter(