Convert //ash from scoped_ptr to std::unique_ptr

ash/wm/panels/panel_frame_view.h

Index: ash/wm/panels/panel_frame_view.h
diff --git a/ash/wm/panels/panel_frame_view.h b/ash/wm/panels/panel_frame_view.h
index 0aea4b86b450ec7f53e5d2d468ea62917f344032..c48924ca6bbed3aaa6ecd1fc82cc0dbff90b1ddd 100644
--- a/ash/wm/panels/panel_frame_view.h
+++ b/ash/wm/panels/panel_frame_view.h
@@ -68,10 +68,11 @@ class ASH_EXPORT PanelFrameView : public views::NonClientFrameView {
   gfx::Rect client_view_bounds_;
 
   // Helper class for painting the header.
-  scoped_ptr<DefaultHeaderPainter> header_painter_;
+  std::unique_ptr<DefaultHeaderPainter> header_painter_;
 
   // Updates the hittest bounds overrides based on the window state type.
-  scoped_ptr<FrameBorderHitTestController> frame_border_hit_test_controller_;
+  std::unique_ptr<FrameBorderHitTestController>
+      frame_border_hit_test_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(PanelFrameView);
 };