Refactoring Reload in NavigationManager and CRWWebController.

ios/web/web_state/web_state_impl.h

 // Copyright 2013 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 IOS_WEB_WEB_STATE_WEB_STATE_IMPL_H_
 #define IOS_WEB_WEB_STATE_WEB_STATE_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 51 matching lines @@
 //    writing them out for session saves.
 class WebStateImpl : public WebState, public NavigationManagerDelegate {
  public:
   // Constructor for WebStateImpls created for new sessions.
   WebStateImpl(BrowserState* browser_state);
   // Constructor for WebStatesImpls created for deserialized sessions
   WebStateImpl(BrowserState* browser_state, CRWSessionStorage* session_storage);
   ~WebStateImpl() override;
 
   // Gets/Sets the CRWWebController that backs this object.
-  CRWWebController* GetWebController();
+  CRWWebController* GetWebController() override;
   void SetWebController(CRWWebController* web_controller);
 
   // Gets or sets the delegate used to communicate with the web contents facade.
   WebStateFacadeDelegate* GetFacadeDelegate() const;
   void SetFacadeDelegate(WebStateFacadeDelegate* facade_delegate);
 
   // Notifies the observers that a provisional navigation has started.
   void OnProvisionalNavigationStarted(const GURL& url);
 
   // Called when a navigation is committed.
@@ skipping 281 matching lines @@
 
   // Mojo interface registry for this WebState.
   std::unique_ptr<service_manager::InterfaceRegistry> mojo_interface_registry_;
 
   DISALLOW_COPY_AND_ASSIGN(WebStateImpl);
 };
 
 }  // namespace web
 
 #endif  // IOS_WEB_WEB_STATE_WEB_STATE_IMPL_H_