Delete method Pathname::url and base/urlencode*

webrtc/base/urlencode.h

-/*
- *  Copyright 2008 The WebRTC Project Authors. All rights reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef _URLENCODE_H_
-#define _URLENCODE_H_ 
-
-#include <string>
-
-namespace rtc {
-
-// Decode all encoded characters. Also decode + as space.
-int UrlDecode(const char *source, char *dest);
-
-// Decode all encoded characters.
-int UrlDecodeWithoutEncodingSpaceAsPlus(const char *source, char *dest);
-
-// Encode all characters except alphas, numbers, and -_.!~*'()
-// Also encode space as +.
-int UrlEncode(const char *source, char *dest, unsigned max);
-
-// Encode all characters except alphas, numbers, and -_.!~*'()
-int UrlEncodeWithoutEncodingSpaceAsPlus(const char *source, char *dest,
-                                        unsigned max);
-
-// Encode only unsafe chars, including \ "^&`<>[]{}
-// Also encode space as %20, instead of +
-int UrlEncodeOnlyUnsafeChars(const char *source, char *dest, unsigned max);
-
-std::string UrlDecodeString(const std::string & encoded);
-std::string UrlDecodeStringWithoutEncodingSpaceAsPlus(
-    const std::string & encoded);
-std::string UrlEncodeString(const std::string & decoded);
-std::string UrlEncodeStringWithoutEncodingSpaceAsPlus(
-    const std::string & decoded);
-std::string UrlEncodeStringForOnlyUnsafeChars(const std::string & decoded);
-
-#endif
-
-}  // namespace rtc