Replace scoped_ptr with std::unique_ptr in //ui

ui/compositor/test/test_compositor_host_win.cc

Index: ui/compositor/test/test_compositor_host_win.cc
diff --git a/ui/compositor/test/test_compositor_host_win.cc b/ui/compositor/test/test_compositor_host_win.cc
index 94a48cc453a3b8ef40f1fc24d6b2d539515f66e7..17b7437ce0d2f630c41ec3c4807c2eeaf3b84de3 100644
--- a/ui/compositor/test/test_compositor_host_win.cc
+++ b/ui/compositor/test/test_compositor_host_win.cc
@@ -4,9 +4,10 @@
 
 #include "ui/compositor/test/test_compositor_host.h"
 
+#include <memory>
+
 #include "base/compiler_specific.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/thread_task_runner_handle.h"
 #include "ui/compositor/compositor.h"
 #include "ui/gfx/win/window_impl.h"
@@ -47,7 +48,7 @@ class TestCompositorHostWin : public TestCompositorHost,
     return gfx::Rect(r).size();
   }
 
-  scoped_ptr<ui::Compositor> compositor_;
+  std::unique_ptr<ui::Compositor> compositor_;
 
   DISALLOW_COPY_AND_ASSIGN(TestCompositorHostWin);
 };