Delete httpclient.c and related files.

webrtc/base/diskcache_win32.h

-/*
- *  Copyright 2006 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 WEBRTC_BASE_DISKCACHEWIN32_H__
-#define WEBRTC_BASE_DISKCACHEWIN32_H__
-
-#include "webrtc/base/diskcache.h"
-
-namespace rtc {
-
-class DiskCacheWin32 : public DiskCache {
- protected:
-  virtual bool InitializeEntries();
-  virtual bool PurgeFiles();
-
-  virtual bool FileExists(const std::string& filename) const;
-  virtual bool DeleteFile(const std::string& filename) const;
-};
-
-}
-
-#endif  // WEBRTC_BASE_DISKCACHEWIN32_H__