Don't pass class types across EXE/DLL boundaries for SetCommandLine() and SetExperimentList().

chrome/app/breakpad_win.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.
 
 #ifndef CHROME_APP_BREAKPAD_WIN_H_
 #define CHROME_APP_BREAKPAD_WIN_H_
 #pragma once
 
 #include <windows.h>
 #include <string>
@@ skipping 24 matching lines @@
 void InitCrashReporter();
 
 // Intercepts a crash but does not process it, just ask if we want to restart
 // the browser or not.
 void InitDefaultCrashCallback(LPTOP_LEVEL_EXCEPTION_FILTER filter);
 
 // If chrome has been restarted because it crashed, this function will display
 // a dialog asking for permission to continue execution or to exit now.
 bool ShowRestartDialogIfCrashed(bool* exit_now);
 
+// Helper to convert a vector of wstrings to corresponding vector of cstrings.
+// Note that |cstrings| will reference memory owned by |wstrings|. Consequently
+// |wstrings| must outlive |cstrings|, and |wstrings| should not be mutated.
+void StringVectorToCStringVector(const std::vector<std::wstring>& wstrings,
+                                 std::vector<const wchar_t*>* cstrings);
+
 namespace testing {
 
 // Testing entry point for calling a function from the unnamed namespace.
 void InitCustomInfoEntries();
 
 }
 
 #endif  // CHROME_APP_BREAKPAD_WIN_H_