Implemented VLOG() et al.

base/string_util.h

 // Copyright (c) 2010 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_
 #pragma once
 
@@ skipping 540 matching lines @@
 // replaced with up to 3 dots, as size permits).
 // Ex: ElideString(L"Hello", 10, &str) puts Hello in str and returns false.
 // ElideString(L"Hello my name is Tom", 10, &str) puts "Hell...Tom" in str and
 // returns true.
 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 ?
 // The backslash character (\) is an escape character for * and ?
 // We limit the patterns to having a max of 16 * or ? characters.
-bool MatchPattern(const std::string& string, const std::string& pattern);
+bool MatchPattern(const base::StringPiece& string,
+                  const base::StringPiece& pattern);
 bool MatchPattern(const string16& string, const string16& pattern);
 
 // Hack to convert any char-like type to its unsigned counterpart.
 // For example, it will convert char, signed char and unsigned char to unsigned
 // char.
 template<typename T>
 struct ToUnsigned {
   typedef T Unsigned;
 };
 
@@ skipping 12 matching lines @@
 #elif defined(WCHAR_T_IS_UTF32)
   typedef uint32 Unsigned;
 #endif
 };
 template<>
 struct ToUnsigned<short> {
   typedef unsigned short Unsigned;
 };
 
 #endif  // BASE_STRING_UTIL_H_