Prefix Chrome switches with the switch prefix.

win8/delegate_execute/command_execute_impl.h

 // Copyright (c) 2012 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 <atlbase.h>
 #include <atlcom.h>
 #include <atlctl.h>
 #include <ShObjIdl.h>
 #include <WinInet.h>
 
 #include <string>
 
+#include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/process_util.h"
 #include "win8/delegate_execute/resource.h"       // main symbols
 
 using namespace ATL;
 
 EXTERN_C const GUID CLSID_CommandExecuteImpl;
 
 // CommandExecuteImpl
 // This class implements the IExecuteCommand and related interfaces for
@@ skipping 61 matching lines @@
   STDMETHOD(AllowForegroundTransfer)(void* reserved);
 
  private:
   static bool FindChromeExe(FilePath* chrome_exe);
   bool GetLaunchScheme(string16* display_name, INTERNET_SCHEME* scheme);
   HRESULT LaunchDesktopChrome();
   // Returns the launch mode, i.e. desktop launch/metro launch, etc.
   EC_HOST_UI_MODE GetLaunchMode();
 
   CComPtr<IShellItemArray> item_array_;
-  string16 parameters_;
+  CommandLine parameters_;
   FilePath chrome_exe_;
   STARTUPINFO start_info_;
   string16 verb_;
   string16 display_name_;
   INTERNET_SCHEME launch_scheme_;
 
   base::IntegrityLevel integrity_level_;
   EC_HOST_UI_MODE chrome_mode_;
 };
 
 OBJECT_ENTRY_AUTO(__uuidof(CommandExecuteImpl), CommandExecuteImpl)