ash: Make sure the focus-border in the tray paints correctly, and tray-view should not be focusable

ash/system/tray/system_tray.cc

Index: ash/system/tray/system_tray.cc
diff --git a/ash/system/tray/system_tray.cc b/ash/system/tray/system_tray.cc
index e70f9a56af9b62eda6b2cf634a894ffb2161bd13..8b3cb3b373328e3db24342a14d9ad4a9c5f086ef 100644
--- a/ash/system/tray/system_tray.cc
+++ b/ash/system/tray/system_tray.cc
@@ -584,7 +584,7 @@ void SystemTray::OnPaintFocusBorder(gfx::Canvas* canvas) {
   // sure clicking on the edges brings up the popup. However, the focus border
   // should be only around the container.
   if (GetWidget() && GetWidget()->IsActive())
-    canvas->DrawFocusRect(tray_container_->bounds());
+    DrawBorder(canvas, GetContentsBounds());
 }
 
 }  // namespace ash