Let chrome_prefs handle Preferences initialization from master_preferences.

chrome/browser/first_run/first_run_internal.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_FIRST_RUN_FIRST_RUN_INTERNAL_H_
 #define CHROME_BROWSER_FIRST_RUN_FIRST_RUN_INTERNAL_H_
 
 class MasterPrefs;
 class Profile;
 
@@ skipping 13 matching lines @@
   FIRST_RUN_UNKNOWN,  // The state is not tested or set yet.
   FIRST_RUN_TRUE,
   FIRST_RUN_FALSE,
   FIRST_RUN_CANCEL,  // This shouldn't be considered first run but the sentinel
                      // should be created anyways.
 };
 
 // This variable should only be accessed through IsChromeFirstRun().
 extern FirstRunState first_run_;
 
-// Generates an initial user preference file in |user_data_dir| using the data
-// in |master_prefs|.
-bool GeneratePrefFile(const base::FilePath& user_data_dir,
-                      const installer::MasterPreferences& master_prefs);
-
 // Sets up master preferences by preferences passed by installer.
 void SetupMasterPrefsFromInstallPrefs(
     const installer::MasterPreferences& install_prefs,
     MasterPrefs* out_prefs);
 
 // Creates the sentinel file that signals that chrome has been configured.
 bool CreateSentinel();
 
 // -- Platform-specific functions --
 
@@ skipping 13 matching lines @@
 // should exit.
 bool ShowPostInstallEULAIfNeeded(installer::MasterPreferences* install_prefs);
 
 // Returns the path for the master preferences file.
 base::FilePath MasterPrefsPath();
 
 }  // namespace internal
 }  // namespace first_run
 
 #endif  // CHROME_BROWSER_FIRST_RUN_FIRST_RUN_INTERNAL_H_