mash: Close system tray bubble on click outside its bounds, part 1

ash/system/tray/system_tray.cc

 // Copyright (c) 2012 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/system/tray/system_tray.h"
 
 #include "ash/ash_switches.h"
 #include "ash/metrics/user_metrics_recorder.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shell.h"
@@ skipping 482 matching lines @@
     full_system_tray_menu_ = items.size() > 1;
     // The menu width is fixed, and it is a per language setting.
     int menu_width = std::max(kMinimumSystemTrayMenuWidth,
         Shell::GetInstance()->system_tray_delegate()->GetSystemTrayMenuWidth());
 
     TrayBubbleView::InitParams init_params(TrayBubbleView::ANCHOR_TYPE_TRAY,
                                            GetAnchorAlignment(),
                                            menu_width,
                                            kTrayPopupMaxWidth);
     init_params.can_activate = can_activate;
+    // Mus cannot use EventHandlers to close the tray, so it uses capture.
+    init_params.close_via_capture = Shell::GetInstance()->in_mus();
     init_params.first_item_has_no_margin = true;
     if (detailed) {
       // This is the case where a volume control or brightness control bubble
       // is created.
       init_params.max_height = default_bubble_height_;
       init_params.arrow_color = kBackgroundColor;
     } else {
       init_params.arrow_color = kHeaderBackgroundColor;
     }
     init_params.arrow_offset = arrow_offset;
@@ skipping 52 matching lines @@
     anchor = system_bubble_->bubble_view();
     anchor_type = TrayBubbleView::ANCHOR_TYPE_BUBBLE;
   } else {
     anchor = tray_container();
     anchor_type = TrayBubbleView::ANCHOR_TYPE_TRAY;
   }
   TrayBubbleView::InitParams init_params(anchor_type,
                                          GetAnchorAlignment(),
                                          kTrayPopupMinWidth,
                                          kTrayPopupMaxWidth);
+  // Mus cannot use EventHandlers to close the tray, so it uses capture.
+  init_params.close_via_capture = Shell::GetInstance()->in_mus();
   init_params.first_item_has_no_margin = true;
   init_params.arrow_color = kBackgroundColor;
   init_params.arrow_offset = GetTrayXOffset(notification_items_[0]);
   notification_bubble_.reset(new SystemBubbleWrapper(notification_bubble));
   notification_bubble_->InitView(this, anchor, &init_params, false);
 
   if (notification_bubble->bubble_view()->child_count() == 0) {
     // It is possible that none of the items generated actual notifications.
     DestroyNotificationBubble();
     return;
@@ skipping 147 matching lines @@
   system_bubble_.reset();
   // When closing a system bubble with the alternate shelf layout, we need to
   // turn off the active tinting of the shelf.
   if (full_system_tray_menu_) {
     SetDrawBackgroundAsActive(false);
     full_system_tray_menu_ = false;
   }
 }
 
 }  // namespace ash