Fix bug in keeping capture in sync during destruction

ui/aura/mus/in_flight_change.h

 // Copyright 2015 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 UI_AURA_MUS_IN_FLIGHT_CHANGE_H_
 #define UI_AURA_MUS_IN_FLIGHT_CHANGE_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "mojo/public/cpp/bindings/array.h"
 #include "ui/aura/window_observer.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace ui {
 
 namespace mojom {
 enum class Cursor : int32_t;
 }
 
 }  // namespace ui
 
 namespace aura {
 
+class CaptureSynchronizer;
 class WindowMus;
 class WindowTreeClient;
 
 enum class ChangeType {
   ADD_CHILD,
   ADD_TRANSIENT_WINDOW,
   BOUNDS,
   CAPTURE,
   DELETE_WINDOW,
   DRAG_LOOP,
@@ skipping 168 matching lines @@
   void OnWindowDestroyed(Window* window) override;
 
   WindowTreeClient* client_;
   WindowMus* revert_window_;
 
   DISALLOW_COPY_AND_ASSIGN(InFlightWindowTreeClientChange);
 };
 
 class InFlightCaptureChange : public InFlightWindowTreeClientChange {
  public:
-  InFlightCaptureChange(WindowTreeClient* client, WindowMus* revert_value);
+  InFlightCaptureChange(WindowTreeClient* client,
+                        CaptureSynchronizer* capture_synchronizer,
+                        WindowMus* revert_value);
   ~InFlightCaptureChange() override;
 
   // InFlightChange:
   void Revert() override;
 
  private:
+  CaptureSynchronizer* capture_synchronizer_;
   DISALLOW_COPY_AND_ASSIGN(InFlightCaptureChange);
 };
 
 class InFlightFocusChange : public InFlightWindowTreeClientChange {
  public:
   InFlightFocusChange(WindowTreeClient* client, WindowMus* revert_value);
   ~InFlightFocusChange() override;
 
   // InFlightChange:
   void Revert() override;
@@ skipping 79 matching lines @@
   void SetRevertValueFrom(const InFlightChange& change) override;
   void Revert() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(InFlightSetModalChange);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_MUS_IN_FLIGHT_CHANGE_H_