Replace scoped_ptr with std::unique_ptr in //ui

ui/views/test/views_test_helper_aura.h

Index: ui/views/test/views_test_helper_aura.h
diff --git a/ui/views/test/views_test_helper_aura.h b/ui/views/test/views_test_helper_aura.h
index 96a26eb24b0d5bec78cfb0be53209870ffc3f2f2..6dfcde6523b9287782187f2b4d018c849f6fe597 100644
--- a/ui/views/test/views_test_helper_aura.h
+++ b/ui/views/test/views_test_helper_aura.h
@@ -5,9 +5,10 @@
 #ifndef UI_VIEWS_TEST_VIEWS_TEST_HELPER_AURA_H_
 #define UI_VIEWS_TEST_VIEWS_TEST_HELPER_AURA_H_
 
+#include <memory>
+
 #include "base/compiler_specific.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "ui/views/test/views_test_helper.h"
 
 namespace aura {
@@ -42,9 +43,9 @@ class ViewsTestHelperAura : public ViewsTestHelper {
 
  private:
   ui::ContextFactory* context_factory_;
-  scoped_ptr<aura::test::AuraTestHelper> aura_test_helper_;
-  scoped_ptr<wm::WMState> wm_state_;
-  scoped_ptr<aura::client::ScreenPositionClient> screen_position_client_;
+  std::unique_ptr<aura::test::AuraTestHelper> aura_test_helper_;
+  std::unique_ptr<wm::WMState> wm_state_;
+  std::unique_ptr<aura::client::ScreenPositionClient> screen_position_client_;
 
   DISALLOW_COPY_AND_ASSIGN(ViewsTestHelperAura);
 };