Add EscapeURL to the ASCII escape methods....

net/base/escape.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.
 
 #ifndef NET_BASE_ESCAPE_H__
 #define NET_BASE_ESCAPE_H__
 
 #include <string>
 
 #include "base/basictypes.h"
 
 // Escaping --------------------------------------------------------------------
 
-// Escape a file or url path.  This includes:
+// Escape a file.  This includes:
 // non-printable, non-7bit, and (including space)  "#%:<>?[\]^`{|}
 std::string EscapePath(const std::string& path);
 
+// Escape an url.  This includes:
+// non-printable, non-7bit, and (including space)  ?>=<;+'&%$#"![\]^`{|}
+// Space is escaped as + and other special characters as %XX (hex).
+std::string EscapeUrl(const std::string& path);
+
 // Escape all non-ASCII input.
 std::string EscapeNonASCII(const std::string& input);
 
 // Escapes characters in text suitable for use as an external protocol handler
 // command.
 // We %XX everything except alphanumerics and %-_.!~*'() and the restricted
 // chracters (;/?:@&=+$,).
 std::string EscapeExternalHandlerValue(const std::string& text);
 
 // Append the given character to the output string, escaping the character if
@@ skipping 87 matching lines @@
                            std::wstring* escaped);
 
 // A specialized version of EscapeQueryParamValue for wide strings that
 // assumes the codepage is UTF8.  This is provided as a convenience.
 //
 // TODO(brettw) bug 1201094: This function should be removed. See the bug for
 // why and what callers should do instead.
 std::wstring EscapeQueryParamValueUTF8(const std::wstring& text);
 
 #endif  // #ifndef NET_BASE_ESCAPE_H__