Fix a few spelling errors in comments.

chrome/browser/ui/webui/options/language_options_interactive_uitest.cc

 // Copyright 2014 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/prefs/pref_service.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/chrome_pages.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/pref_names.h"
@@ skipping 108 matching lines @@
   ASSERT_TRUE(content::ExecuteScriptAndExtractString(
       active_frame,
       get_children_of_current_element_script,
       &languages));
   EXPECT_EQ("English (United States)SpanishFrench", languages);
 }
 
 // This test will validate that the language webui is accessible through
 // the keyboard.
 // This test must be updated if the tab order of the elements on this page
-// is chagned.
+// is changed.
 // flaky: http://crbug.com/405711
 IN_PROC_BROWSER_TEST_F(LanguageOptionsWebUITest, TestListTabAccessibility) {
   // Verify that the language list is focused by default.
   std::string original_id = GetActiveElementId();
   EXPECT_EQ("language-options-list", original_id);
 
   // Press tab to select the next element.
   ASSERT_TRUE(PressKey(ui::VKEY_TAB));
 
   // Make sure that the element is now the button that is next in the tab order.
   // Checking that the list is no longer selected is not sufficient to validate
   // this use case because this test should fail if an item inside the list is
   // selected.
   std::string new_id = GetActiveElementId();
   EXPECT_EQ("language-options-add-button", new_id);
 }
 
 }  // namespace language_options_ui_test