Move extension_error_utils.* and url_pattern_set.* into

extensions/common/url_pattern_set.h

 // Copyright (c) 2012 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.
 
-#ifndef CHROME_COMMON_EXTENSIONS_URL_PATTERN_SET_H_
-#define CHROME_COMMON_EXTENSIONS_URL_PATTERN_SET_H_
+#ifndef EXTENSIONS_COMMMON_URL_PATTERN_SET_H_
+#define EXTENSIONS_COMMMON_URL_PATTERN_SET_H_
 
 #include <set>
 
 #include "base/memory/scoped_ptr.h"
 #include "extensions/common/url_pattern.h"
 
 class GURL;
 
 namespace base {
 class ListValue;
 class Value;
 }
 
+namespace extensions {
+
 // Represents the set of URLs an extension uses for web content.
 class URLPatternSet {
  public:
   typedef std::set<URLPattern>::const_iterator const_iterator;
   typedef std::set<URLPattern>::iterator iterator;
 
   // Clears |out| and populates the set with |set1| - |set2|.
   static void CreateDifference(const URLPatternSet& set1,
                                const URLPatternSet& set2,
                                URLPatternSet* out);
@@ skipping 57 matching lines @@
   bool Populate(const std::vector<std::string>& patterns,
                 int valid_schemes,
                 bool allow_file_access,
                 std::string* error);
 
  private:
   // The list of URL patterns that comprise the extent.
   std::set<URLPattern> patterns_;
 };
 
-#endif  // CHROME_COMMON_EXTENSIONS_URL_PATTERN_SET_H_
+}  // namespace extensions
+
+#endif  // EXTENSIONS_COMMMON_URL_PATTERN_SET_H_