Perform online reauth when password is changed for a locked profile.

google_apis/gaia/gaia_urls.h

Index: google_apis/gaia/gaia_urls.h
diff --git a/google_apis/gaia/gaia_urls.h b/google_apis/gaia/gaia_urls.h
index 4db875ac54f5f2842c189d9e9b25c9c9cf81fba8..07623f605c77af05d64188eee0679b06d40259f3 100644
--- a/google_apis/gaia/gaia_urls.h
+++ b/google_apis/gaia/gaia_urls.h
@@ -53,6 +53,9 @@ class GaiaUrls {
   GURL LogOutURLWithSource(const std::string& source);
   GURL GetCheckConnectionInfoURLWithSource(const std::string& source);
 
+  // Continue URL used to signal the completion of the signin flow.
+  GURL signin_completed_continue_url() const;
+
  private:
   GaiaUrls();
   ~GaiaUrls();