Revert 56423 - Added classes to enable session sync functionality....

chrome/browser/sessions/session_restore.h

 // Copyright (c) 2010 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_SESSION_RESTORE_H_
 #define CHROME_BROWSER_SESSIONS_SESSION_RESTORE_H_
 #pragma once
 
 #include <vector>
 
 #include "chrome/browser/history/history.h"
-#include "chrome/browser/sessions/session_types.h"
 #include "base/basictypes.h"
 
 class Browser;
 class Profile;
 
 // SessionRestore handles restoring either the last or saved session. Session
 // restore come in two variants, asynchronous or synchronous. The synchronous
 // variety is meant for startup, and blocks until restore is complete.
 class SessionRestore {
  public:
   // Asnchronously restores the specified session.
   // If |browser| is non-null the tabs for the first window are added to it.
   // If clobber_existing_window is true and there is an open browser window,
   // it is closed after restoring.
   // If always_create_tabbed_browser is true at least one tabbed browser is
   // created. For example, if there is an error restoring, or the last session
   // session is empty and always_create_tabbed_browser is true, a new empty
   // tabbed browser is created.
   //
   // If urls_to_open is non-empty, a tab is added for each of the URLs.
   static void RestoreSession(Profile* profile,
                              Browser* browser,
                              bool clobber_existing_window,
                              bool always_create_tabbed_browser,
                              const std::vector<GURL>& urls_to_open);
 
-  // Specifically used in the restoration of a foreign session.  This method
-  // restores the given session windows to a browser.
-  static void RestoreForeignSessionWindows(Profile* profile,
-      std::vector<SessionWindow*>* windows);
-
   // Synchronously restores the last session. At least one tabbed browser is
   // created, even if there is an error in restoring.
   //
   // If urls_to_open is non-empty, a tab is added for each of the URLs.
   static void RestoreSessionSynchronously(
       Profile* profile,
       const std::vector<GURL>& urls_to_open);
 
   // Returns true if we're in the process of restoring.
   static bool IsRestoring();
 
   // The max number of non-selected tabs SessionRestore loads when restoring
   // a session. A value of 0 indicates all tabs are loaded at once.
   static size_t num_tabs_to_load_;
 
  private:
   SessionRestore();
 
   DISALLOW_COPY_AND_ASSIGN(SessionRestore);
 };
 
 #endif  // CHROME_BROWSER_SESSIONS_SESSION_RESTORE_H_