Inline sign in extracts gaia id from HTTP header and seeds account tracker

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

Index: chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
diff --git a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
index 265034058379fcd466d1d2ec5a8c8114eb413cb5..122b69420c3ebf69fb64ecb14a72962e89816600 100644
--- a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
+++ b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
@@ -352,7 +352,8 @@ class SigninScreenHandler
 
   // WebUI message handlers.
   void HandleGetUsers();
-  void HandleAuthenticateUser(const std::string& username,
+  void HandleAuthenticateUser(const std::string& gaia_id,
+                              const std::string& username,
                               const std::string& password);
   void HandleAttemptUnlock(const std::string& username);
   void HandleLaunchDemoUser();