Some first_run code cleanups (extracted from https://codereview.chromium.org/12670013 to keep that …

chrome/browser/first_run/first_run_internal.h

Index: chrome/browser/first_run/first_run_internal.h
diff --git a/chrome/browser/first_run/first_run_internal.h b/chrome/browser/first_run/first_run_internal.h
index 4532709a434b6dd687853f5e32f34f61dcb14b01..d2ccebf998ac23f5d13e55ce579af55036f169c6 100644
--- a/chrome/browser/first_run/first_run_internal.h
+++ b/chrome/browser/first_run/first_run_internal.h
@@ -32,6 +32,7 @@ class MasterPreferences;
 }
 
 namespace first_run {
+
 namespace internal {
 
 enum FirstRunState {
@@ -96,10 +97,6 @@ void SetupMasterPrefsFromInstallPrefs(
 
 void SetDefaultBrowser(installer::MasterPreferences* install_prefs);
 
-// Sets ping_delay.
-void SetRLZPref(first_run::MasterPrefs* out_prefs,
-                installer::MasterPreferences* install_prefs);
-
 // -- Platform-specific functions --
 
 void DoPostImportPlatformSpecificTasks();
@@ -140,6 +137,9 @@ bool ImportBookmarks(const base::FilePath& import_bookmarks_path);
 // should exit.
 bool ShowPostInstallEULAIfNeeded(installer::MasterPreferences* install_prefs);
 
+// Returns the path for the master preferences file.
+base::FilePath MasterPrefsPath();
+
 }  // namespace internal
 }  // namespace first_run