[Password Manager] Make filling robust against changing url by JavaScript

chrome/renderer/autofill/password_autofill_agent_browsertest.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 "components/autofill/content/renderer/password_autofill_agent.h"
 
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
@@ skipping 2895 matching lines @@
   EXPECT_EQ(1, fake_driver_.called_check_safe_browsing_reputation_cnt());
 
   // Navigate to another page and click on username field,
   // CheckSafeBrowsingReputation() should be triggered again.
   LoadHTML(kFormHTML);
   SimulateElementClick(kUsernameName);
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(2, fake_driver_.called_check_safe_browsing_reputation_cnt());
 }
 #endif
+
+// Tests that username/password are autofilled when JavaScript is changing url
+// between discovering a form and receving credentials from the browser process.
+TEST_F(PasswordAutofillAgentTest, AutocompleteWhenPageUrlIsChanged) {
+  // Simulate that JavaScript changes url.
+  fill_data_.origin = GURL(fill_data_.origin.possibly_invalid_spec() + "/path");
+
+  SimulateOnFillPasswordForm(fill_data_);
+
+  // The username and password should have been autocompleted.
+  CheckTextFieldsState(kAliceUsername, true, kAlicePassword, true);
+}
 }  // namespace autofill