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

ash/common/shelf/wm_shelf.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/common/shelf/wm_shelf.h"
 #include "ash/common/shelf/wm_shelf_observer.h"
 #include "ash/common/wm_lookup.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "base/logging.h"
@@ skipping 143 matching lines @@
 }
 
 void WmShelf::RemoveObserver(WmShelfObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
 void WmShelf::NotifyShelfIconPositionsChanged() {
   FOR_EACH_OBSERVER(WmShelfObserver, observers_, OnShelfIconPositionsChanged());
 }
 
+StatusAreaWidget* WmShelf::GetStatusAreaWidget() const {
+  return shelf_layout_manager_->shelf_widget()->status_area_widget();
+}
+
 void WmShelf::SetVirtualKeyboardBoundsForTesting(const gfx::Rect& bounds) {
   shelf_layout_manager_->OnKeyboardBoundsChanging(bounds);
 }
 
 ShelfLockingManager* WmShelf::GetShelfLockingManagerForTesting() {
   return shelf_->shelf_locking_manager_for_testing();
 }
 
 ShelfView* WmShelf::GetShelfViewForTesting() {
   return shelf_->shelf_view_for_testing();
@@ skipping 21 matching lines @@
 
 void WmShelf::OnBackgroundUpdated(ShelfBackgroundType background_type,
                                   BackgroundAnimatorChangeType change_type) {
   if (background_type == GetBackgroundType())
     return;
   FOR_EACH_OBSERVER(WmShelfObserver, observers_,
                     OnBackgroundTypeChanged(background_type, change_type));
 }
 
 }  // namespace ash