Add application locale policy.

chrome/browser/browser_main.cc

Index: chrome/browser/browser_main.cc
diff --git a/chrome/browser/browser_main.cc b/chrome/browser/browser_main.cc
index af6098a4ea0af59031327946dacd718409dce845..265fec123074ab1f90c5c1def8ee633cd4793602 100644
--- a/chrome/browser/browser_main.cc
+++ b/chrome/browser/browser_main.cc
@@ -812,6 +812,8 @@ int BrowserMain(const MainFunctionParams& parameters) {
 #if defined(OS_MACOSX)
     g_browser_process->SetApplicationLocale(l10n_util::GetLocaleOverride());
 #else
+    // On a POSIX OS other than ChromeOS, the parameter that is passed to the
+    // method InitSharedInstance is ignored.
     std::string app_locale = ResourceBundle::InitSharedInstance(
         ASCIIToWide(local_state->GetString(prefs::kApplicationLocale)));
     g_browser_process->SetApplicationLocale(app_locale);