mus: Disregard windows that explicitly set can_accept_events to be false when sending events.

services/ui/ws/server_window.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_WS_SERVER_WINDOW_H_
 #define SERVICES_UI_WS_SERVER_WINDOW_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 163 matching lines @@
   const ServerWindowSurfaceManager* surface_manager() const {
     return surface_manager_.get();
   }
 
   // Offset of the underlay from the the window bounds (used for shadows).
   const gfx::Vector2d& underlay_offset() const { return underlay_offset_; }
   void SetUnderlayOffset(const gfx::Vector2d& offset);
 
   ServerWindowDelegate* delegate() { return delegate_; }
 
+  void SetAcceptEvents(bool accept_events) { accept_events_ = accept_events; }

[sky, 2016/07/06 16:21:25]

set_accept_events and accept_events() const (see style guide for general
naming).

[riajiang, 2016/07/08 17:59:59]

Done.

+  bool AcceptEvents() { return accept_events_; }
+
 #if !defined(NDEBUG)
   std::string GetDebugWindowHierarchy() const;
   void BuildDebugInfo(const std::string& depth, std::string* result) const;
 #endif
 
  private:
   // Implementation of removing a window. Doesn't send any notification.
   void RemoveImpl(ServerWindow* window);
 
   // Called when this window's stacking order among its siblings is changed.
@@ skipping 24 matching lines @@
   gfx::Rect bounds_;
   gfx::Insets client_area_;
   std::vector<gfx::Rect> additional_client_areas_;
   std::unique_ptr<ServerWindowSurfaceManager> surface_manager_;
   mojom::Cursor cursor_id_;
   mojom::Cursor non_client_cursor_id_;
   float opacity_;
   bool can_focus_;
   gfx::Transform transform_;
   ui::TextInputState text_input_state_;
+  bool accept_events_;
 
   Properties properties_;
 
   gfx::Vector2d underlay_offset_;
 
   // The hit test for windows extends outside the bounds of the window by this
   // amount.
   gfx::Insets extended_hit_test_region_;
 
   // Mouse events outside the hit test mask don't hit the window. An empty mask
   // means all events miss the window. If null there is no mask.
   std::unique_ptr<gfx::Rect> hit_test_mask_;
 
   base::ObserverList<ServerWindowObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(ServerWindow);
 };
 
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_SERVER_WINDOW_H_