Convert ExtensionViewGuest to use the new navigation callbacks.

extensions/browser/guest_view/extension_view/extension_view_guest.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 EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSION_VIEW_EXTENSION_VIEW_GUEST_H_
 #define EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSION_VIEW_EXTENSION_VIEW_GUEST_H_
 
 #include "base/macros.h"
 #include "components/guest_view/browser/guest_view.h"
 #include "extensions/browser/extension_function_dispatcher.h"
@@ skipping 19 matching lines @@
   // GuestViewBase implementation.
   bool CanRunInDetachedState() const final;
   void CreateWebContents(const base::DictionaryValue& create_params,
                          const WebContentsCreatedCallback& callback) final;
   void DidInitialize(const base::DictionaryValue& create_params) final;
   void DidAttachToEmbedder() final;
   const char* GetAPINamespace() const final;
   int GetTaskPrefix() const final;
 
   // content::WebContentsObserver implementation.
-  void DidCommitProvisionalLoadForFrame(
-      content::RenderFrameHost* render_frame_host,
-      const GURL& url,
-      ui::PageTransition transition_type) final;
-  void DidNavigateMainFrame(const content::LoadCommittedDetails& details,
-                            const content::FrameNavigateParams& params) final;
+  void DidFinishNavigation(content::NavigationHandle* navigation_handle) final;
 
   // Applies attributes to the extensionview.
   void ApplyAttributes(const base::DictionaryValue& params);
 
   // The full URL that the extensionview is currently navigated to.
   GURL url_;
 
   // The extension URL, including the extension scheme and extension ID.
   GURL extension_url_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionViewGuest);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSION_VIEW_EXTENSION_VIEW_GUEST_H_