Chromium roll (https://codereview.chromium.org/976353002)

services/kiosk_wm/navigator_host_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 SERVICES_KIOSK_WM_NAVIGATOR_HOST_IMPL_H_
 #define SERVICES_KIOSK_WM_NAVIGATOR_HOST_IMPL_H_
 
 #include "base/memory/weak_ptr.h"
 #include "mojo/common/weak_binding_set.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
 #include "mojo/services/navigation/public/interfaces/navigation.mojom.h"
 
 namespace kiosk_wm {
 class KioskWM;
 
 class NavigatorHostImpl : public mojo::NavigatorHost {
  public:
   NavigatorHostImpl(KioskWM* kiosk_wm);
-  ~NavigatorHostImpl();
+  ~NavigatorHostImpl() override;
 
   void Bind(mojo::InterfaceRequest<mojo::NavigatorHost> request);
 
   void RecordNavigation(const std::string& url);
 
   // mojo::NavigatorHost implementation:
   void DidNavigateLocally(const mojo::String& url) override;
   void RequestNavigate(mojo::Target target,
                        mojo::URLRequestPtr request) override;
   void RequestNavigateHistory(int32_t delta) override;
 
  private:
   std::vector<std::string> history_;
   int32_t current_index_;
 
   KioskWM* kiosk_wm_;
   mojo::WeakBindingSet<NavigatorHost> bindings_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigatorHostImpl);
 };
 
 }  // namespace kiosk_wm
 
 #endif  // SERVICES_KIOSK_WM_NAVIGATOR_HOST_IMPL_H_