Do not try to convert point to root coordinate space when |local_frame_id_| is invalid.

chrome/browser/ssl/ssl_browser_tests.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <utility>
 
 #include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
@@ skipping 2332 matching lines @@
   observer.Wait();
 
   // We should still be authentication broken.
   CheckAuthenticationBrokenState(tab, net::CERT_STATUS_DATE_INVALID,
                                  AuthState::NONE);
 }
 
 // From an HTTP top frame, navigate to good and bad HTTPS (security state should
 // stay unauthenticated).
 IN_PROC_BROWSER_TEST_F(SSLUITest, TestUnauthenticatedFrameNavigation) {
-  // TODO(crbug.com/668913): Flaky with --site-per-process.
-  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kSitePerProcess)) {
-    return;
-  }
   ASSERT_TRUE(embedded_test_server()->Start());
   ASSERT_TRUE(https_server_.Start());
   ASSERT_TRUE(https_server_expired_.Start());
 
   std::string top_frame_path;
   GetTopFramePath(*embedded_test_server(), https_server_, https_server_expired_,
                   &top_frame_path);
 
   WebContents* tab = browser()->tab_strip_model()->GetActiveWebContents();
   ui_test_utils::NavigateToURL(browser(),
@@ skipping 1514 matching lines @@
 
 // Visit a page over https that contains a frame with a redirect.
 
 // XMLHttpRequest insecure content in synchronous mode.
 
 // XMLHttpRequest insecure content in asynchronous mode.
 
 // XMLHttpRequest over bad ssl in synchronous mode.
 
 // XMLHttpRequest over OK ssl in synchronous mode.