Make GTK and Aura parts orthogonal to OS parts

chrome/browser/chrome_browser_main_linux.cc

+// Copyright (c) 2011 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 "chrome/browser/chrome_browser_main_linux.h"
+
+#if defined(USE_AURA)
+#include "chrome/browser/chrome_browser_parts_aura.h"
+#endif
+#if defined(TOOLKIT_USES_GTK)
+#include "chrome/browser/chrome_browser_parts_gtk.h"
+#endif
+
+ChromeBrowserMainPartsLinux::ChromeBrowserMainPartsLinux(
+    const MainFunctionParams& parameters)
+    : ChromeBrowserMainPartsPosix(parameters) {
+}
+
+void ChromeBrowserMainPartsLinux::ShowMissingLocaleMessageBox() {
+#if defined(USE_AURA)
+  ChromeBrowserPartsAura::ShowMessageBox(
+      chrome_browser::kMissingLocaleDataMessage);
+#elif defined(TOOLKIT_USES_GTK)
+  ChromeBrowserPartsGtk::ShowMessageBox(
+      chrome_browser::kMissingLocaleDataMessage);
+#else
+#error "Need MessageBox implementation for linux without Aura or Gtk"
+#endif
+}