URL's not properly unescaping when displayed

net/base/escape.cc

 // 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.
 
 #include <algorithm>
 
 #include "net/base/escape.h"
 
 #include "base/logging.h"
 #include "base/string_util.h"
@@ skipping 89 matching lines @@
 //   P  Q  R  S  T  U  V  W  X  Y  Z  [  \  ]  ^  _
      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 //   `  a  b  c  d  e  f  g  h  i  j  k  l  m  n  o
      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 //   p  q  r  s  t  u  v  w  x  y  z  {  |  }  ~  <NBSP>
      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
 };
 
 std::string UnescapeURLImpl(const std::string& escaped_text,
                             UnescapeRule::Type rules) {
+  // Do not unescape anything, return the |escaped_text| text.
+  if (rules == UnescapeRule::NONE)
+    return escaped_text;
+
   // The output of the unescaping is always smaller than the input, so we can
   // reserve the input size to make sure we have enough buffer and don't have
   // to allocate in the loop below.
   std::string result;
   result.reserve(escaped_text.length());
 
   for (size_t i = 0, max = escaped_text.size(); i < max; ++i) {
     if (escaped_text[i] == '%' && i + 2 < max) {
       const std::string::value_type most_sig_digit(escaped_text[i + 1]);
       const std::string::value_type least_sig_digit(escaped_text[i + 2]);
@@ skipping 155 matching lines @@
   return result;
 }
 
 std::string EscapeForHTML(const std::string& input) {
   return EscapeForHTMLImpl(input);
 }
 
 std::wstring EscapeForHTML(const std::wstring& input) {
   return EscapeForHTMLImpl(input);
 }