Move c/c/extensions/matcher/ to top level extension dir

extensions/common/matcher/string_pattern.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_MATCHER_STRING_PATTERN_H_
-#define CHROME_COMMON_EXTENSIONS_MATCHER_STRING_PATTERN_H_
+#ifndef EXTENSIONS_COMMON_MATCHER_STRING_PATTERN_H_
+#define EXTENSIONS_COMMON_MATCHER_STRING_PATTERN_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 
 namespace extensions {
 
 // An individual pattern of a substring or regex matcher. A pattern consists of
 // a string (interpreted as individual bytes, no character encoding) and an
@@ skipping 15 matching lines @@
 
  private:
   std::string pattern_;
   ID id_;
 
   DISALLOW_COPY_AND_ASSIGN(StringPattern);
 };
 
 }  // namespace extensions
 
-#endif  // CHROME_COMMON_EXTENSIONS_MATCHER_STRING_PATTERN_H_
+#endif  // EXTENSIONS_COMMON_MATCHER_STRING_PATTERN_H_