Update permission warning for contentSettings API

chrome/test/data/extensions/api_test/content_settings/unsupporteddefaultsettings/test.js

 // Copyright (c) 2015 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.
 
 // Content settings API test
 // Run with browser_tests --gtest_filter=ExtensionApiTest.ContentSettings
 
 var cs = chrome.contentSettings;
 
 // The following type-value pairs indicate that the value should be supported
@@ skipping 18 matching lines @@
 }
 
 function expectFalse(message) {
   return expect({
     "value": false,
     "levelOfControl": "controllable_by_this_extension"
   }, message);
 }
 
 chrome.test.runTests([
-  function setDefaultContentSettings() {
+  function setDefaultContentSettingsAllUrls() {
     settings.forEach(function(type, setting) {
       cs[type].set({
         'primaryPattern': '<all_urls>',
         'secondaryPattern': '<all_urls>',
         'setting': setting
       },
       chrome.test.callbackFail("'" + setting +
           "' is not supported as the default setting of " + type + "."));
     });
   },
+
+  // Patterns with scheme wildcards and extension IDs should not be added.
+  function setDefaultContentSettingsExtensionUrlWildcard() {
+    settings.forEach(function(type, setting) {
+      cs[type].set({
+        'primaryPattern': '*://' + chrome.runtime.id + '/*',
+        'secondaryPattern': '*://' + chrome.runtime.id + '/*',
+        'setting': setting
+      },
+      chrome.test.callbackFail("'" + setting +
+          "' is not supported as the default setting of " + type + "."));
+    });
+  },
+
+  // Patterns with chrome-extension scheme and extension IDs should not be
+  // added.
+  function setDefaultContentSettingsExtensionUrlWildcard() {
+    settings.forEach(function(type, setting) {
+      cs[type].set({
+        'primaryPattern': 'chrome-extension://' + chrome.runtime.id + '/*',
+        'secondaryPattern': 'chrome-extension://' + chrome.runtime.id + '/*',
+        'setting': setting
+      },
+      chrome.test.callbackFail("Invalid scheme."));
+    });
+  },
+
   function setExceptions() {
     settings.forEach(function(type, setting) {
       cs[type].set({
         'primaryPattern': 'http://*.google.com/*',
         'secondaryPattern': 'http://*.google.com/*',
         'setting': setting
       }, chrome.test.callbackPass());
     });
   }
 ]);