Site Settings Desktop: Fix issues with entering URL patterns.

chrome/browser/resources/settings/site_settings/site_settings_behavior.js

Index: chrome/browser/resources/settings/site_settings/site_settings_behavior.js
diff --git a/chrome/browser/resources/settings/site_settings/site_settings_behavior.js b/chrome/browser/resources/settings/site_settings/site_settings_behavior.js
index 41b78218eef240918572b51a990e1b065580f171..8c20f2c7ea92fd7507a27f208165c468412f629c 100644
--- a/chrome/browser/resources/settings/site_settings/site_settings_behavior.js
+++ b/chrome/browser/resources/settings/site_settings/site_settings_behavior.js
@@ -390,12 +390,14 @@ var SiteSettingsBehaviorImpl = {
   },
 
   /**
-   * Adds the wildcard prefix to a pattern string.
+   * Adds the wildcard prefix to a pattern string (if missing).
    * @param {string} pattern The pattern to add the wildcard to.
    * @return {string} The resulting pattern.
    * @private
    */
   addPatternWildcard: function(pattern) {
+    if (pattern.indexOf('[*.]') > -1)
+      return pattern;

[Finnur, 2016/09/05 11:23:17]

When the user manually enters a URL pattern with a wildcard, we don't want to
add an extra one.

[dschuyler, 2016/09/06 18:20:29]

Acknowledged.

     if (pattern.startsWith('http://'))
       return pattern.replace('http://', 'http://[*.]');
     else if (pattern.startsWith('https://'))