Fixing renderer's access to a file from HTTP POST (after a xsite transfer).

content/browser/session_history_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 <utility>
 
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/browser/navigation_controller.h"
@@ skipping 496 matching lines @@
 // Test that verifies that a cross-process transfer doesn't lose session
 // history state - https://crbug.com/613004.
 //
 // Trigerring a cross-process transfer via embedded_test_server requires use of
 // a HTTP redirect response (to preserve port number).  Therefore the test ends
 // up accidentally testing redirection logic as well - in particular, the test
 // uses 307 (rather than 302) redirect to preserve the body of HTTP POST across
 // redirects (as mandated by https://tools.ietf.org/html/rfc7231#section-6.4.7).
 IN_PROC_BROWSER_TEST_F(SessionHistoryTest, GoBackToCrossSitePostWithRedirect) {
   GURL form_url(embedded_test_server()->GetURL(
-      "a.com", "/session_history/form_that_posts_cross_site.html"));
+      "a.com", "/form_that_posts_cross_site.html"));
   GURL redirect_target_url(embedded_test_server()->GetURL("x.com", "/echoall"));
   GURL page_to_go_back_from(
       embedded_test_server()->GetURL("c.com", "/title1.html"));
 
   // Navigate to the page with form that posts via 307 redirection to
   // |redirect_target_url| (cross-site from |form_url|).
   EXPECT_TRUE(NavigateToURL(shell(), form_url));
 
   // Submit the form.
   TestNavigationObserver form_post_observer(shell()->web_contents(), 1);
   EXPECT_TRUE(ExecuteScript(shell()->web_contents(),
-                            "document.getElementById('form').submit();"));
+                            "document.getElementById('text-form').submit();"));
   form_post_observer.Wait();
 
   // Verify that we arrived at the expected, redirected location.
   EXPECT_EQ(redirect_target_url,
             shell()->web_contents()->GetLastCommittedURL());
 
   // Verify that POST body got preserved by 307 redirect.  This expectation
   // comes from: https://tools.ietf.org/html/rfc7231#section-6.4.7
   std::string body;
   EXPECT_TRUE(ExecuteScriptAndExtractString(
@@ skipping 19 matching lines @@
   std::string body_after_back_navigation;
   EXPECT_TRUE(ExecuteScriptAndExtractString(
       shell()->web_contents(),
       "window.domAutomationController.send("
       "document.getElementsByTagName('pre')[0].innerText);",
       &body_after_back_navigation));
   EXPECT_EQ("text=value\n", body_after_back_navigation);
 }
 
 }  // namespace content