[cleanup] Removed embedded sign-in support code from OOBE.

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 c5dc415c54f17b02dcb4a4e58f655c8873758a33..0caf2cb8e2b3e6b2b9a494c89912e22ee7f07352 100644
--- a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
@@ -461,8 +461,6 @@ void SigninScreenHandler::RegisterMessages() {
               &SigninScreenHandler::HandleToggleEnrollmentScreen);
   AddCallback("toggleEnableDebuggingScreen",
               &SigninScreenHandler::HandleToggleEnableDebuggingScreen);
-  AddCallback("switchToEmbeddedSignin",
-              &SigninScreenHandler::HandleSwitchToEmbeddedSignin);
   AddCallback("toggleKioskEnableScreen",
               &SigninScreenHandler::HandleToggleKioskEnableScreen);
   AddCallback("createAccount", &SigninScreenHandler::HandleCreateAccount);
@@ -1178,13 +1176,10 @@ void SigninScreenHandler::HandleResyncUserData() {
 }
 
 void SigninScreenHandler::HandleLoginUIStateChanged(const std::string& source,
-                                                    bool new_value) {
-  VLOG(0) << "Login WebUI >> active: " << new_value << ", "
+                                                    bool active) {
+  VLOG(0) << "Login WebUI >> active: " << active << ", "
             << "source: " << source;
 
-  if (source == "gaia-signin" && !new_value)
-    gaia_screen_handler_->CancelEmbeddedSignin();
-
   if (!KioskAppManager::Get()->GetAutoLaunchApp().empty() &&
       KioskAppManager::Get()->IsAutoLaunchRequested()) {
     VLOG(0) << "Showing auto-launch warning";
@@ -1276,10 +1271,6 @@ void SigninScreenHandler::HandleGetTouchViewState() {
   }
 }
 
-void SigninScreenHandler::HandleSwitchToEmbeddedSignin() {
-  gaia_screen_handler_->SwitchToEmbeddedSignin();
-}
-
 bool SigninScreenHandler::AllWhitelistedUsersPresent() {
   CrosSettings* cros_settings = CrosSettings::Get();
   bool allow_new_user = false;