Enable EULA dialog to be shown from metro Chrome.

chrome/browser/first_run/first_run_posix.cc

 // 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 "chrome/browser/first_run/first_run.h"
 
 #include "base/path_service.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/first_run/first_run_internal.h"
 #include "chrome/browser/importer/importer_host.h"
@@ skipping 109 matching lines @@
 
 namespace first_run {
 
 // TODO(port): Import switches need to be ported to both Mac and Linux. Not all
 // import switches here are implemented for Linux. None are implemented for Mac
 // (as this function will not be called on Mac).
 int ImportNow(Profile* profile, const CommandLine& cmdline) {
   return internal::ImportBookmarkFromFileIfNeeded(profile, cmdline);
 }
 
-bool ProcessMasterPreferences(const FilePath& user_data_dir,
-                              MasterPrefs* out_prefs) {
+ProcessMasterPreferencesResult ProcessMasterPreferences(
+    const FilePath& user_data_dir,
+    MasterPrefs* out_prefs) {
   DCHECK(!user_data_dir.empty());
 
   FilePath master_prefs_path;
   scoped_ptr<installer::MasterPreferences>
       install_prefs(internal::LoadMasterPrefs(&master_prefs_path));
   if (!install_prefs.get())
-    return true;
+    return SHOW_FIRST_RUN;
 
   out_prefs->new_tabs = install_prefs->GetFirstRunTabs();
 
   internal::SetRLZPref(out_prefs, install_prefs.get());
 
   if (!internal::CopyPrefFile(user_data_dir, master_prefs_path))
-    return true;
+    return SHOW_FIRST_RUN;
 
   internal::SetupMasterPrefsFromInstallPrefs(out_prefs,
       install_prefs.get());
 
   // TODO(mirandac): Refactor skip-first-run-ui process into regular first run
   // import process.  http://crbug.com/49647
   // Note we are skipping all other master preferences if skip-first-run-ui
   // is *not* specified. (That is, we continue only if skipping first run ui.)
   if (!internal::SkipFirstRunUI(install_prefs.get()))
-    return true;
+    return SHOW_FIRST_RUN;
 
   // From here on we won't show first run so we need to do the work to show the
   // bubble anyway, unless it's already been explicitly suppressed.
   SetShowFirstRunBubblePref(true);
 
   // We need to be able to create the first run sentinel or else we cannot
   // proceed because ImportSettings will launch the importer process which
   // would end up here if the sentinel is not present.
   if (!CreateSentinel())
-    return false;
+    return SKIP_FIRST_RUN;
 
   internal::SetShowWelcomePagePrefIfNeeded(install_prefs.get());
   internal::SetImportPreferencesAndLaunchImport(out_prefs, install_prefs.get());
   internal::SetDefaultBrowser(install_prefs.get());
 
-  return false;
+  return SKIP_FIRST_RUN;
 }
 
 
 }  // namespace first_run