[Chrome OS MD] Draw a 1px separator between 2 tray items

ash/common/system/tray/system_tray.cc

Index: ash/common/system/tray/system_tray.cc
diff --git a/ash/common/system/tray/system_tray.cc b/ash/common/system/tray/system_tray.cc
index 75a6b093c7e8bcad0b1bfa15c65578d7ce865ab2..4c06c4826d4bf53d2669ba0be0af95322a8cc7d9 100644
--- a/ash/common/system/tray/system_tray.cc
+++ b/ash/common/system/tray/system_tray.cc
@@ -6,6 +6,7 @@
 
 #include "ash/common/ash_switches.h"
 #include "ash/common/login_status.h"
+#include "ash/common/material_design/material_design_controller.h"

[yoshiki, 2016/08/19 03:45:31]

nit: is this change necessary?

[yiyix, 2016/08/19 19:07:56]

Done.

 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shelf/wm_shelf.h"
 #include "ash/common/shelf/wm_shelf_util.h"
@@ -627,6 +628,7 @@ void SystemTray::SetShelfAlignment(ShelfAlignment alignment) {
   if (alignment == shelf_alignment())
     return;
   TrayBackgroundView::SetShelfAlignment(alignment);
+

[yoshiki, 2016/08/19 03:45:31]

nit: I think we shouldn't have this clean up in this CL, since this CL doesn't
change code around here.

[yiyix, 2016/08/19 19:07:56]

Done.

   UpdateAfterShelfAlignmentChange(alignment);
   // Destroy any existing bubble so that it is rebuilt correctly.
   CloseSystemBubbleAndDeactivateSystemTray();