Abstract WebContents/NavigationController from core TabRestore code

components/sessions/core/tab_restore_service_client.cc

 // 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.
 
 #include "components/sessions/core/tab_restore_service_client.h"
 
 namespace sessions {
 
 TabClientData::~TabClientData() {}
 
 TabRestoreServiceClient::~TabRestoreServiceClient() {}
 
-scoped_ptr<TabClientData>
-TabRestoreServiceClient::GetTabClientDataForWebContents(
-    content::WebContents* web_contents) {
+scoped_ptr<TabClientData> TabRestoreServiceClient::GetTabClientDataForTab(
+    LiveTab* tab) {
   return nullptr;
 }
 
 void TabRestoreServiceClient::OnTabRestored(const GURL& url) {}
 
 }  // namespace sessions