Update URLPatternSet to contain a std::set instead of std::vector.

chrome/browser/extensions/extension_management_api.cc

Index: chrome/browser/extensions/extension_management_api.cc
diff --git a/chrome/browser/extensions/extension_management_api.cc b/chrome/browser/extensions/extension_management_api.cc
index 9dc479caa06ca2d9921a1277b6b8c9ca98e18a42..395536140f1de75f9537fee05081f915f88943d2 100644
--- a/chrome/browser/extensions/extension_management_api.cc
+++ b/chrome/browser/extensions/extension_management_api.cc
@@ -106,10 +106,10 @@ static DictionaryValue* CreateExtensionInfo(const Extension& extension,
   ListValue* host_permission_list = new ListValue();
   if (!extension.is_hosted_app()) {
     // Skip host permissions for hosted apps.
-    const URLPatternList host_perms =
-        extension.permission_set()->explicit_hosts().patterns();
-    if (!host_perms.empty()) {
-      URLPatternList::const_iterator host_perms_iter;
+    const URLPatternSet host_perms =
+        extension.permission_set()->explicit_hosts();
+    if (!host_perms.is_empty()) {
+      URLPatternSet::const_iterator host_perms_iter;
       for (host_perms_iter = host_perms.begin();
            host_perms_iter != host_perms.end();
            ++host_perms_iter) {