mash: Fix system tray bubble not closing for clicks outside its bounds

services/ui/public/cpp/window_tree_client.h

 // Copyright 2014 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.
 
 #ifndef SERVICES_UI_PUBLIC_CPP_WINDOW_TREE_CLIENT_H_
 #define SERVICES_UI_PUBLIC_CPP_WINDOW_TREE_CLIENT_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 246 matching lines @@
   // Called by WmNewDisplayAdded().
   void WmNewDisplayAddedImpl(const display::Display& display,
                              mojom::WindowDataPtr root_data,
                              bool parent_drawn);
 
   void OnReceivedCursorLocationMemory(mojo::ScopedSharedBufferHandle handle);
 
   // Callback passed from WmPerformMoveLoop().
   void OnWmMoveLoopCompleted(uint32_t change_id, bool completed);
 
+  // Notifies the delegate of an |event| matching an event observer. |target|
+  // may be null if the event did not hit a window owned by this client.
+  void SendToEventObserver(const ui::Event& event, Window* target);
+
   // Overridden from WindowTreeClient:
   void OnEmbed(ClientSpecificId client_id,
                mojom::WindowDataPtr root,
                mojom::WindowTreePtr tree,
                int64_t display_id,
                Id focused_window_id,
                bool drawn) override;
   void OnEmbeddedAppDisconnected(Id window_id) override;
   void OnUnembed(Id window_id) override;
   void OnLostCapture(Id window_id) override;
@@ skipping 154 matching lines @@
   base::Callback<void(bool)> on_current_move_finished_;
 
   base::WeakPtrFactory<WindowTreeClient> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowTreeClient);
 };
 
 }  // namespace ui
 
 #endif  // SERVICES_UI_PUBLIC_CPP_WINDOW_TREE_CLIENT_H_