Remove unimplemented and unused IsSchemeBitSet method

extensions/common/url_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 EXTENSIONS_COMMON_URL_PATTERN_H_
 #define EXTENSIONS_COMMON_URL_PATTERN_H_
 
 #include <functional>
 #include <string>
 #include <vector>
 
@@ skipping 171 matching lines @@
   class EffectiveHostCompareFunctor {
    public:
     bool operator()(const URLPattern& a, const URLPattern& b) const {
       return EffectiveHostCompare(a, b);
     };
   };
 
   // Get an error string for a ParseResult.
   static const char* GetParseResultString(URLPattern::ParseResult parse_result);
 
-  // Checks whether the bit is set for the given scheme in the given scheme mask
-  static bool IsSchemeBitSet(const std::string& scheme, const int mask);
-
  private:
   // Returns true if any of the |schemes| items matches our scheme.
   bool MatchesAnyScheme(const std::vector<std::string>& schemes) const;
 
   // Returns true if all of the |schemes| items matches our scheme.
   bool MatchesAllSchemes(const std::vector<std::string>& schemes) const;
 
   bool MatchesSecurityOriginHelper(const GURL& test) const;
 
   // Returns true if our port matches the |port| pattern (it may be "*").
@@ skipping 32 matching lines @@
   // MatchPattern() function.
   std::string path_escaped_;
 
   // A string representing this URLPattern.
   mutable std::string spec_;
 };
 
 typedef std::vector<URLPattern> URLPatternList;
 
 #endif  // EXTENSIONS_COMMON_URL_PATTERN_H_