mus Window Server: implement event capture

components/mus/public/cpp/lib/window_tree_client_impl.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 COMPONENTS_MUS_PUBLIC_CPP_LIB_WINDOW_TREE_CLIENT_IMPL_H_
 #define COMPONENTS_MUS_PUBLIC_CPP_LIB_WINDOW_TREE_CLIENT_IMPL_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 58 matching lines @@
   void Reorder(Window* window,
                Id relative_window_id,
                mojom::OrderDirection direction);
 
   // Returns true if the specified window was created by this connection.
   bool OwnsWindow(Window* window) const;
 
   void SetBounds(Window* window,
                  const gfx::Rect& old_bounds,
                  const gfx::Rect& bounds);
+  void SetCapture(Window* window);
+  void ReleaseCapture(Window* window);
   void SetClientArea(Id window_id,
                      const gfx::Insets& client_area,
                      const std::vector<gfx::Rect>& additional_client_areas);
   void SetFocus(Window* window);
   void SetCanFocus(Id window_id, bool can_focus);
   void SetPredefinedCursor(Id window_id, mus::mojom::Cursor cursor_id);
   void SetVisible(Window* window, bool visible);
   void SetProperty(Window* window,
                    const std::string& name,
                    mojo::Array<uint8_t> data);
@@ skipping 78 matching lines @@
   void RemoveObserver(WindowTreeConnectionObserver* observer) override;
 
   // Overridden from WindowTreeClient:
   void OnEmbed(ConnectionSpecificId connection_id,
                mojom::WindowDataPtr root,
                mojom::WindowTreePtr tree,
                Id focused_window_id,
                uint32_t access_policy) override;
   void OnEmbeddedAppDisconnected(Id window_id) override;
   void OnUnembed(Id window_id) override;
+  void OnLostCapture(Id window_id) override;
   void OnTopLevelCreated(uint32_t change_id,
                          mojom::WindowDataPtr data) override;
   void OnWindowBoundsChanged(Id window_id,
                              mojo::RectPtr old_bounds,
                              mojo::RectPtr new_bounds) override;
   void OnClientAreaChanged(
       uint32_t window_id,
       mojo::InsetsPtr new_client_area,
       mojo::Array<mojo::RectPtr> new_additional_client_areas) override;
   void OnTransientWindowAdded(uint32_t window_id,
@@ skipping 83 matching lines @@
   scoped_ptr<mojo::AssociatedBinding<mojom::WindowManager>>
       window_manager_internal_;
   mojom::WindowManagerClientAssociatedPtr window_manager_internal_client_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(WindowTreeClientImpl);
 };
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_PUBLIC_CPP_LIB_WINDOW_TREE_CLIENT_IMPL_H_