Add login screen locale and input method device policies

chrome/browser/lifetime/application_lifetime.cc

Index: chrome/browser/lifetime/application_lifetime.cc
diff --git a/chrome/browser/lifetime/application_lifetime.cc b/chrome/browser/lifetime/application_lifetime.cc
index e603602cc707f09aafa2bb81e3dda5fee1ef99f8..33537b7dd0982a54479c7c53ce63d5e620a217ba 100644
--- a/chrome/browser/lifetime/application_lifetime.cc
+++ b/chrome/browser/lifetime/application_lifetime.cc
@@ -46,10 +46,12 @@
 #if defined(OS_CHROMEOS)
 #include "base/sys_info.h"
 #include "chrome/browser/chromeos/boot_times_recorder.h"
+#include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/power_policy_controller.h"
 #include "chromeos/dbus/session_manager_client.h"
 #include "chromeos/dbus/update_engine_client.h"
+#include "chromeos/settings/cros_settings_names.h"
 #endif
 
 #if defined(OS_WIN)
@@ -168,12 +170,30 @@ void AttemptUserExit() {
   if (state) {
     chromeos::BootTimesRecorder::Get()->OnLogoutStarted(state);
 
+    bool commit_pending_write = false;
+
     // Login screen should show up in owner's locale.
     std::string owner_locale = state->GetString(prefs::kOwnerLocale);
     if (!owner_locale.empty() &&
         state->GetString(prefs::kApplicationLocale) != owner_locale &&
         !state->IsManagedPreference(prefs::kApplicationLocale)) {
       state->SetString(prefs::kApplicationLocale, owner_locale);
+      commit_pending_write = true;
+    }
+
+    // If a policy mandates the login screen locale, use it.
+    chromeos::CrosSettings* cros_settings = chromeos::CrosSettings::Get();
+    const base::ListValue* loginScreenLocales = nullptr;
+    std::string loginScreenLocale;
+    if (cros_settings->GetList(chromeos::kDeviceLoginScreenLocales,
+                               &loginScreenLocales) &&
+        !loginScreenLocales->empty() &&
+        loginScreenLocales->GetString(0, &loginScreenLocale)) {
+      state->SetString(prefs::kApplicationLocale, loginScreenLocale);
+
+      commit_pending_write = true;
+    }
+    if (commit_pending_write) {
       TRACE_EVENT0("shutdown", "CommitPendingWrite");
       state->CommitPendingWrite();
     }