Fix FTP directory listing page error by adding "language" key

chrome/browser/net/ftp_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 "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
-#include "chrome/test/base/in_process_browser_test.h"
+#include "chrome/test/base/javascript_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/test/browser_test_utils.h"
 #include "net/test/spawned_test_server/spawned_test_server.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
-class FtpBrowserTest : public InProcessBrowserTest {
+class FtpBrowserTest : public JavaScriptBrowserTest {
  public:
   FtpBrowserTest()
       : ftp_server_(net::SpawnedTestServer::TYPE_FTP,
                     net::SpawnedTestServer::kLocalhost,
                     base::FilePath(FILE_PATH_LITERAL("chrome/test/data/ftp"))) {
   }
 
+  void TearDownOnMainThread() override {
+    // TODO(dbeam): should all JavaScriptBrowserTests do something like this?
+    if (has_console_info()) {
+      FAIL();

[mmenke, 2016/06/03 16:05:51]

ADD_FAILURE()?  The FAIL macro includes a return statement, just like the ASSERT
ones do.

[Dan Beam, 2016/06/03 18:58:27]

Done.

+      set_has_console_info(false);
+    }
+    JavaScriptBrowserTest::TearDownOnMainThread();
+  }
+
  protected:
   net::SpawnedTestServer ftp_server_;
 };
 
 void WaitForTitle(content::WebContents* contents, const char* expected_title) {
   content::TitleWatcher title_watcher(contents,
       base::ASCIIToUTF16(expected_title));
 
   EXPECT_EQ(base::ASCIIToUTF16(expected_title),
             title_watcher.WaitAndGetTitle());
@@ skipping 41 matching lines @@
         "var elements = document.getElementsByTagName('a');"
         "for (var i = 0; i < elements.length; i++) {"
         "  if (elements[i].innerHTML == 'test.html') {"
         "    elements[i].click();"
         "  }"
         "}"));
 
   WaitForTitle(browser()->tab_strip_model()->GetActiveWebContents(),
                "PASS");
 }