mus Window Server: implement event capture

components/mus/ws/test_change_tracker.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_WS_TEST_CHANGE_TRACKER_H_
 #define COMPONENTS_MUS_WS_TEST_CHANGE_TRACKER_H_
 
 #include <stdint.h>
 
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "components/mus/common/types.h"
 #include "components/mus/public/interfaces/window_tree.mojom.h"
 #include "mojo/public/cpp/bindings/array.h"
 #include "ui/mojo/geometry/geometry.mojom.h"
 
 namespace mus {
 
 namespace ws {
 
 enum ChangeType {
   CHANGE_TYPE_EMBED,
   CHANGE_TYPE_EMBEDDED_APP_DISCONNECTED,
   CHANGE_TYPE_UNEMBED,
+  CHANGE_TYPE_LOST_CAPTURE,
   // TODO(sky): nuke NODE.
   CHANGE_TYPE_NODE_ADD_TRANSIENT_WINDOW,
   CHANGE_TYPE_NODE_BOUNDS_CHANGED,
   CHANGE_TYPE_NODE_VIEWPORT_METRICS_CHANGED,
   CHANGE_TYPE_NODE_HIERARCHY_CHANGED,
   CHANGE_TYPE_NODE_REMOVE_TRANSIENT_WINDOW_FROM_PARENT,
   CHANGE_TYPE_NODE_REORDERED,
   CHANGE_TYPE_NODE_VISIBILITY_CHANGED,
   CHANGE_TYPE_NODE_DRAWN_STATE_CHANGED,
   CHANGE_TYPE_NODE_DELETED,
@@ skipping 86 matching lines @@
 
   void set_delegate(Delegate* delegate) { delegate_ = delegate; }
 
   std::vector<Change>* changes() { return &changes_; }
 
   // Each of these functions generate a Change. There is one per
   // WindowTreeClient function.
   void OnEmbed(ConnectionSpecificId connection_id, mojom::WindowDataPtr root);
   void OnEmbeddedAppDisconnected(Id window_id);
   void OnUnembed(Id window_id);
+  void OnLostCapture(Id window_id);
   void OnTransientWindowAdded(Id window_id, Id transient_window_id);
   void OnTransientWindowRemoved(Id window_id, Id transient_window_id);
   void OnWindowBoundsChanged(Id window_id,
                              mojo::RectPtr old_bounds,
                              mojo::RectPtr new_bounds);
   void OnWindowViewportMetricsChanged(mojom::ViewportMetricsPtr old_bounds,
                                       mojom::ViewportMetricsPtr new_bounds);
   void OnWindowHierarchyChanged(Id window_id,
                                 Id new_parent_id,
                                 Id old_parent_id,
@@ skipping 20 matching lines @@
   std::vector<Change> changes_;
 
   DISALLOW_COPY_AND_ASSIGN(TestChangeTracker);
 };
 
 }  // namespace ws
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_WS_TEST_CHANGE_TRACKER_H_