Revert r46023: "Detect new instance of the browser when running in the background in persistent"

chrome/app/client_util.h

 // Copyright (c) 2006-2008 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.
 
 // This file defines utility functions that can report details about the
 // host operating environment.
 
 #ifndef CHROME_APP_CLIENT_UTIL_H_
 #define CHROME_APP_CLIENT_UTIL_H_
 
@@ skipping 12 matching lines @@
   MainDllLoader();
   virtual ~MainDllLoader();
 
   // Loads and calls the entry point of chrome.dll. |instance| is the exe
   // instance retrieved from wWinMain and the |sbox_info| is the broker or
   // target services interface pointer.
   // The return value is what the main entry point of chrome.dll returns
   // upon termination.
   int Launch(HINSTANCE instance, sandbox::SandboxInterfaceInfo* sbox_info);
 
-  // Launches a new instance of the browser if the current instance in
-  // persistent mode an upgrade is detected.
-  void RelaunchChromeBrowserWithNewCommandLineIfNeeded();
-
   // Derived classes must return the relative registry path that holds the
   // most current version of chrome.dll.
   virtual std::wstring GetRegistryPath() = 0;
 
   // Called after chrome.dll has been loaded but before the entry point
   // is invoked. Derived classes can implement custom actions here.
   virtual void OnBeforeLaunch(const std::wstring& version) {}
 
   // Called after the chrome.dll entry point returns and before terminating
   // this process. The return value will be used as the process return code.
   virtual int OnBeforeExit(int return_code) { return return_code; }
 
  protected:
   HMODULE Load(std::wstring* version, std::wstring* file);
 
  private:
   // Chrome.dll handle.
   HMODULE dll_;
 };
 
 // Factory for the MainDllLoader. Caller owns the pointer and should call
 // delete to free it.
 MainDllLoader* MakeMainDllLoader();
 
 #endif  // CHROME_APP_CLIENT_UTIL_H_