ash: Show better focus rects for the tray.

ash/system/tray/tray_views.h

Index: ash/system/tray/tray_views.h
diff --git a/ash/system/tray/tray_views.h b/ash/system/tray/tray_views.h
index e06c57418ab4024a70fac088d0829999a0b81e67..8757f3bd0c0827f881e4716b89403d3892fe8c99 100644
--- a/ash/system/tray/tray_views.h
+++ b/ash/system/tray/tray_views.h
@@ -10,6 +10,7 @@
 #include "ui/gfx/size.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/scroll_view.h"
+#include "ui/views/controls/slider.h"
 #include "ui/views/view.h"
 
 class SkBitmap;
@@ -55,6 +56,7 @@ class ActionableView : public views::View {
   // Overridden from views::View.
   virtual bool OnKeyPressed(const views::KeyEvent& event) OVERRIDE;
   virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE;
+  virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ActionableView);