Replace scoped_ptr with std::unique_ptr in //ui

ui/display/manager/display_layout_builder.h

Index: ui/display/manager/display_layout_builder.h
diff --git a/ui/display/manager/display_layout_builder.h b/ui/display/manager/display_layout_builder.h
index 9b3caefac62d97dd564d793d20437e95ca3b484d..72d86c07c2da46b3b78d581bd4e1dfca2b1f9edf 100644
--- a/ui/display/manager/display_layout_builder.h
+++ b/ui/display/manager/display_layout_builder.h
@@ -5,8 +5,9 @@
 #ifndef UI_DISPLAY_MANAGER_DISPLAY_LAYOUT_BUILDER_H_
 #define UI_DISPLAY_MANAGER_DISPLAY_LAYOUT_BUILDER_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "ui/display/display_export.h"
 #include "ui/display/manager/display_layout.h"
 
@@ -44,10 +45,10 @@ class DISPLAY_EXPORT DisplayLayoutBuilder final {
       int offset);
 
   // Returns the DisplayLayout. After this call, the builder becomes invalid.
-  scoped_ptr<DisplayLayout> Build();
+  std::unique_ptr<DisplayLayout> Build();
 
  private:
-  scoped_ptr<DisplayLayout> layout_;
+  std::unique_ptr<DisplayLayout> layout_;
 
   DISALLOW_COPY_AND_ASSIGN(DisplayLayoutBuilder);
 };