Move RemoveChars, ReplaceChars, TrimString, and TruncateUTF8ToByteSize to base namespace.

net/base/net_util.cc

 // 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.
 
 #include "net/base/net_util.h"
 
 #include <algorithm>
 #include <iterator>
 #include <map>
 
@@ skipping 755 matching lines @@
     size_t length = filename->size();
     size_t pos = filename->find_last_not_of(FILE_PATH_LITERAL(" ."));
     filename->resize((pos == std::string::npos) ? 0 : (pos + 1));
     TrimWhitespace(*filename, TRIM_TRAILING, filename);
     if (filename->empty())
       return;
     size_t trimmed = length - filename->size();
     if (trimmed)
       filename->insert(filename->end(), trimmed, kReplace[0]);
   }
-  TrimString(*filename, FILE_PATH_LITERAL("."), filename);
+  base::TrimString(*filename, FILE_PATH_LITERAL("."), filename);
   if (filename->empty())
     return;
   // Replace any path information by changing path separators.
   ReplaceSubstringsAfterOffset(filename, 0, FILE_PATH_LITERAL("/"), kReplace);
   ReplaceSubstringsAfterOffset(filename, 0, FILE_PATH_LITERAL("\\"), kReplace);
 }
 
 // Returns the filename determined from the last component of the path portion
 // of the URL.  Returns an empty string if the URL doesn't have a path or is
 // invalid. If the generated filename is not reliable,
@@ skipping 1423 matching lines @@
   }
   return a1.size() * CHAR_BIT;
 }
 
 unsigned MaskPrefixLength(const IPAddressNumber& mask) {
   IPAddressNumber all_ones(mask.size(), 0xFF);
   return CommonPrefixLength(mask, all_ones);
 }
 
 }  // namespace net