Adding a HexEncode function to string_utils....

base/string_util.h

 // Copyright (c) 2006-2008 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.
 //
 // This file defines utility functions for working with strings.
 
 #ifndef BASE_STRING_UTIL_H_
 #define BASE_STRING_UTIL_H_
 
 #include <string>
@@ skipping 510 matching lines @@
 bool ElideString(const std::wstring& input, int max_len, std::wstring* output);
 
 // Returns true if the string passed in matches the pattern. The pattern
 // string can contain wildcards like * and ?
 // TODO(iyengar) This function may not work correctly for CJK strings as
 // it does individual character matches.
 // The backslash character (\) is an escape character for * and ?
 bool MatchPattern(const std::wstring& string, const std::wstring& pattern);
 bool MatchPattern(const std::string& string, const std::string& pattern);
 
+// Returns a hex string representation of a binary buffer.
+// The returned hex string will be in upper case.
+// This function does not check if |size| is within reasonable limits since
+// it's written with trusted data in mind.
+// If you suspect that the data you want to format might be large,
+// the absolute max size for |size| should be is
+//   std::numeric_limits<size_t>::max() / 2
+std::string HexEncode(const void* bytes, size_t size);
+
 #endif  // BASE_STRING_UTIL_H_
-