[ChromeOS] Expose keyboard remapping to signin screen.

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc

Index: chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
index cf023763f334e81d2a5efb3dcdeb3b0cd3ce2f4e..b1e9c0227b6e84eea14f0eb65ef090f794ab0389 100644
--- a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
@@ -676,6 +676,14 @@ void SigninScreenHandler::ZeroOfflineTimeoutForTesting() {
   zero_offline_timeout_for_test_ = true;
 }
 
+bool SigninScreenHandler::GetKeyboardRemappedPrefValue(
+    const std::string& pref_name,
+    int* value) {
+  return focused_pod_account_id_ && focused_pod_account_id_->is_valid() &&
+         user_manager::known_user::GetIntegerPref(*focused_pod_account_id_,
+                                                  pref_name, value);
+}
+
 // SigninScreenHandler, private: -----------------------------------------------
 
 void SigninScreenHandler::ShowImpl() {