Replace scoped_ptr with std::unique_ptr in //ui

ui/display/chromeos/display_configurator.cc

Index: ui/display/chromeos/display_configurator.cc
diff --git a/ui/display/chromeos/display_configurator.cc b/ui/display/chromeos/display_configurator.cc
index 93afee24d063b52d409922d4fd0cd5d65454e5eb..633f813ebca34914d485550cfa2f580500736fc3 100644
--- a/ui/display/chromeos/display_configurator.cc
+++ b/ui/display/chromeos/display_configurator.cc
@@ -506,7 +506,7 @@ DisplayConfigurator::~DisplayConfigurator() {
 }
 
 void DisplayConfigurator::SetDelegateForTesting(
-    scoped_ptr<NativeDisplayDelegate> display_delegate) {
+    std::unique_ptr<NativeDisplayDelegate> display_delegate) {
   DCHECK(!native_display_delegate_);
 
   native_display_delegate_ = std::move(display_delegate);