Delete unused files macconversion.h and .cc.

webrtc/base/macconversion.h

-/*
- *  Copyright 2004 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_MACCONVERSION_H_
-#define WEBRTC_BASE_MACCONVERSION_H_
-
-#if defined(WEBRTC_MAC) || defined(WEBRTC_IOS)
-
-#include <CoreFoundation/CoreFoundation.h>
-
-#include <string>
-
-// given a CFStringRef, attempt to convert it to a C++ string.
-// returns true if it succeeds, false otherwise.
-// We can safely assume, given our context, that the string is
-// going to be in ASCII, because it will either be an IP address,
-// or a domain name, which is guaranteed to be ASCII-representable.
-bool p_convertHostCFStringRefToCPPString(const CFStringRef cfstr,
-                                         std::string& cppstr);
-
-// Convert the CFNumber to an integer, putting the integer in the location
-// given, and returhing true, if the conversion succeeds.
-// If given a NULL or a non-CFNumber, returns false.
-// This is pretty aggresive about trying to convert to int.
-bool p_convertCFNumberToInt(CFNumberRef cfn, int* i);
-
-// given a CFNumberRef, determine if it represents a true value.
-bool p_isCFNumberTrue(CFNumberRef cfn);
-
-#endif  // WEBRTC_MAC || WEBRTC_IOS
-
-#endif  // WEBRTC_BASE_MACCONVERSION_H_