Replace scoped_ptr with std::unique_ptr in //ui

ui/compositor/test/draw_waiter_for_test.h

Index: ui/compositor/test/draw_waiter_for_test.h
diff --git a/ui/compositor/test/draw_waiter_for_test.h b/ui/compositor/test/draw_waiter_for_test.h
index 7d271ff86d3e52e2ccb2668b75e8dacf9285eadc..0c4c195fae63edb8e7e59c0df3fac3e7ff7e5a1e 100644
--- a/ui/compositor/test/draw_waiter_for_test.h
+++ b/ui/compositor/test/draw_waiter_for_test.h
@@ -5,8 +5,9 @@
 #ifndef UI_COMPOSITOR_TEST_DRAW_WAITER_H_
 #define UI_COMPOSITOR_TEST_DRAW_WAITER_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "ui/compositor/compositor_observer.h"
 
@@ -50,7 +51,7 @@ class DrawWaiterForTest : public CompositorObserver {
   void OnCompositingLockStateChanged(Compositor* compositor) override;
   void OnCompositingShuttingDown(Compositor* compositor) override;
 
-  scoped_ptr<base::RunLoop> wait_run_loop_;
+  std::unique_ptr<base::RunLoop> wait_run_loop_;
 
   WaitEvent wait_event_;