Replace scoped_ptr with std::unique_ptr in //ui

ui/aura/test/aura_test_utils.h

Index: ui/aura/test/aura_test_utils.h
diff --git a/ui/aura/test/aura_test_utils.h b/ui/aura/test/aura_test_utils.h
index d33eb4e9c57c84d1f5252c2f52f9fe4e45339201..516a83cf36be8946f6769cd0a061e906794f84be 100644
--- a/ui/aura/test/aura_test_utils.h
+++ b/ui/aura/test/aura_test_utils.h
@@ -5,8 +5,9 @@
 #ifndef UI_AURA_TEST_AURA_TEST_UTILS_H_
 #define UI_AURA_TEST_AURA_TEST_UTILS_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 
 namespace gfx {
 class Point;
@@ -20,7 +21,7 @@ namespace test {
 
 const gfx::Point& QueryLatestMousePositionRequestInHost(WindowTreeHost* host);
 void SetHostDispatcher(WindowTreeHost* host,
-                       scoped_ptr<WindowEventDispatcher> dispatcher);
+                       std::unique_ptr<WindowEventDispatcher> dispatcher);
 
 }  // namespace test
 }  // namespace aura