[Password Manager, merge to M-59] 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 2694 matching lines @@
   base::RunLoop().RunUntilIdle();
 
   // Chect that the form was submitted with in-page navigation.
   EXPECT_TRUE(fake_driver_.called_inpage_navigation());
   EXPECT_EQ(base::string16(),
             fake_driver_.password_form_inpage_navigation()->username_value);
   EXPECT_EQ(ASCIIToUTF16("random"),
             fake_driver_.password_form_inpage_navigation()->password_value);
 }
 
+// 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