Remove WindowTreeClientDelegate::GetCaptureClient() and WindowTreeClient::GetCaptureClient().

services/navigation/view_impl.h

 // Copyright 2016 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_NAVIGATION_VIEW_IMPL_H_
 #define SERVICES_NAVIGATION_VIEW_IMPL_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 67 matching lines @@
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
   // aura::WindowTreeClientDelegate:
   void OnEmbed(
       std::unique_ptr<aura::WindowTreeHostMus> window_tree_host) override;
   void OnEmbedRootDestroyed(aura::WindowTreeHostMus* window_tree_host) override;
   void OnLostConnection(aura::WindowTreeClient* client) override;
   void OnPointerEventObserved(const ui::PointerEvent& event,
                               aura::Window* target) override;
-  aura::client::CaptureClient* GetCaptureClient() override;
   aura::PropertyConverter* GetPropertyConverter() override;
 
   // views::WidgetDelegate:
   views::View* GetContentsView() override;
   views::Widget* GetWidget() override;
   const views::Widget* GetWidget() const override;
 
   std::unique_ptr<service_manager::Connector> connector_;
   mojom::ViewClientPtr client_;
   std::unique_ptr<service_manager::ServiceContextRef> ref_;
 
   std::unique_ptr<aura::WindowTreeClient> window_tree_client_;
 
   views::WebView* web_view_;
 
   std::unique_ptr<content::WebContents> web_contents_;
 
   content::NotificationRegistrar registrar_;
 
   std::unique_ptr<aura::WindowTreeHostMus> window_tree_host_;
   std::unique_ptr<views::Widget> widget_;
 
   DISALLOW_COPY_AND_ASSIGN(ViewImpl);
 };
 
 }  // navigation
 
 #endif  // SERVICES_NAVIGATION_VIEW_IMPL_H_