Cleanup: Remove some unused code, or make them platform specific.

chrome/browser/chrome_browser_main.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_BROWSER_CHROME_BROWSER_MAIN_H_
 #define CHROME_BROWSER_CHROME_BROWSER_MAIN_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/field_trial.h"
@@ skipping 14 matching lines @@
 class PrefService;
 class Profile;
 class StartupBrowserCreator;
 class StartupTimeBomb;
 class ShutdownWatcherHelper;
 class ThreeDAPIObserver;
 class TranslateManager;
 
 namespace chrome_browser {
 // For use by ShowMissingLocaleMessageBox.
+#if defined(OS_WIN)
 extern const char kMissingLocaleDataTitle[];
+#endif
+
+#if defined(OS_WIN) || defined(TOOLKIT_GTK)
 extern const char kMissingLocaleDataMessage[];
+#endif
 }
 
 namespace chrome_browser_metrics {
 class TrackingSynchronizer;
 }
 
 namespace performance_monitor {
 class StartupTimer;
 }
 
@@ skipping 140 matching lines @@
   bool restart_last_session_;
 
   // Tests can set this to true to disable restricting cookie access in the
   // network stack, as this can only be done once.
   static bool disable_enforcing_cookie_policies_for_tests_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainParts);
 };
 
 #endif  // CHROME_BROWSER_CHROME_BROWSER_MAIN_H_