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 2cc7bd5b0ed9e9a82857a9dd142750df5799e8be..8899dbe314e4ba152e3bbc0eff02d8380e6e533d 100644
--- a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
+++ b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
@@ -341,7 +341,8 @@ 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();