Eliminate BaseSessionServiceDelegateImpl

chrome/browser/sessions/chrome_tab_restore_service_client.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 CHROME_BROWSER_SESSIONS_CHROME_TAB_RESTORE_SERVICE_CLIENT_H_
 #define CHROME_BROWSER_SESSIONS_CHROME_TAB_RESTORE_SERVICE_CLIENT_H_
 
 #include "base/basictypes.h"
 #include "components/sessions/core/tab_restore_service_client.h"
 
 class Profile;
 
 // ChromeTabRestoreServiceClient provides an implementation of
 // TabRestoreServiceClient that depends on chrome/.
 class ChromeTabRestoreServiceClient : public sessions::TabRestoreServiceClient {
  public:
   explicit ChromeTabRestoreServiceClient(Profile* profile);
   ~ChromeTabRestoreServiceClient() override;
 
  private:
   // TabRestoreServiceClient:
+  bool ShouldTrackEntry(const GURL& url) override;
+  base::SequencedWorkerPool* GetBlockingPool() override;
   base::FilePath GetPathToSaveTo() override;
   GURL GetNewTabURL() override;
   bool HasLastSession() override;
   void GetLastSession(const sessions::GetLastSessionCallback& callback,
                       base::CancelableTaskTracker* tracker) override;
   void OnTabRestored(const GURL& url) override;
 
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeTabRestoreServiceClient);
 };
 
 #endif  // CHROME_BROWSER_SESSIONS_CHROME_TAB_RESTORE_SERVICE_CLIENT_H_