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

chrome/common/extensions/user_script.h

Index: chrome/common/extensions/user_script.h
diff --git a/chrome/common/extensions/user_script.h b/chrome/common/extensions/user_script.h
index ab42e0bef6329909e85a1f76c1b45fc947b7dc08..6153f4bd4adcc01abd3fd6869fade2cbb434d463 100644
--- a/chrome/common/extensions/user_script.h
+++ b/chrome/common/extensions/user_script.h
@@ -149,10 +149,11 @@ class UserScript {
 
   // The URLPatterns, if any, that determine which pages this script runs
   // against.
-  const URLPatternList& url_patterns() const { return url_set_.patterns(); }
+  const URLPatternSet& url_patterns() const { return url_set_; }
   void add_url_pattern(const URLPattern& pattern);
-  const URLPatternList& exclude_url_patterns() const {
-    return exclude_url_set_.patterns(); }
+  const URLPatternSet& exclude_url_patterns() const {
+    return exclude_url_set_;
+  }
   void add_exclude_url_pattern(const URLPattern& pattern);
 
   // List of js scripts for this user script