WebCorePrefix.h is only used for Mac OS X. Clean up dead code and remove including wtf/Platform.h.

Source/core/WebCorePrefixMac.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2013 Apple Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
-/* This prefix file should contain only: 
+/* This prefix file is for use on Mac OS X only. This prefix file should contain only:
  *    1) files to precompile for faster builds
  *    2) in one case at least: OS-X-specific performance bug workarounds
  *    3) the special trick to catch us using new or delete without including "config.h"
  * The project should be able to build without this header, although we rarely test that.
  */
 
 /* Things that need to be defined globally should go into "config.h". */
 
-#include <wtf/Platform.h>
-
-#if defined(__APPLE__)
 #ifdef __cplusplus
 #define NULL __null
 #else
 #define NULL ((void *)0)
 #endif
-#endif
-
-#if OS(WINDOWS)
-
-#ifndef _WIN32_WINNT
-#define _WIN32_WINNT 0x0502
-#endif
-
-#ifndef WINVER
-#define WINVER 0x0502
-#endif
-
-#ifndef _WINSOCKAPI_
-#define _WINSOCKAPI_ // Prevent inclusion of winsock.h in windows.h
-#endif
-
-// If we don't define these, they get defined in windef.h. 
-// We want to use std::min and std::max
-#ifdef __cplusplus
-#define max max
-#define min min
-#endif
-
-#else
 
 #include <pthread.h>
-
-#endif // OS(WINDOWS)
-
 #include <sys/types.h>
 #include <fcntl.h>
-#if defined(__APPLE__)
 #include <regex.h>
-#endif
-
-
 #include <setjmp.h>
-
 #include <signal.h>
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
-#if defined(__APPLE__)
 #include <unistd.h>
-#endif
 
 #ifdef __cplusplus
-
-
 #include <ciso646>
 
 #if defined(_LIBCPP_VERSION)
 
 // Add work around for a bug in libc++ that caused standard heap
 // APIs to not compile <rdar://problem/10858112>.
 
 #include <type_traits>
 
 namespace WebCore {
-    class TimerHeapReference;
+class TimerHeapReference;
 }
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 inline _LIBCPP_INLINE_VISIBILITY
 const WebCore::TimerHeapReference& move(const WebCore::TimerHeapReference& t)
 {
     return t;
 }
 
 _LIBCPP_END_NAMESPACE_STD
 
 #endif // defined(_LIBCPP_VERSION)
 
 #include <algorithm>
 #include <cstddef>
 #include <new>
 
-#endif
+#endif // __cplusplus
 
-#if defined(__APPLE__)
 #include <sys/param.h>
-#endif
 #include <sys/stat.h>
-#if defined(__APPLE__)
 #include <sys/time.h>
 #include <sys/resource.h>
-#endif
-
 #include <CoreFoundation/CoreFoundation.h>
-
-#if OS(WINDOWS)
-#include <windows.h>
-#else
 #include <CoreServices/CoreServices.h>
-#endif // OS(WINDOWS)
 
 #ifdef __OBJC__
 #import <Cocoa/Cocoa.h>
 #endif
 
 #ifdef __cplusplus
 #define new ("if you use new/delete make sure to include config.h at the top of the file"()) 
 #define delete ("if you use new/delete make sure to include config.h at the top of the file"()) 
 #endif
 
 /* When C++ exceptions are disabled, the C++ library defines |try| and |catch|
  * to allow C++ code that expects exceptions to build. These definitions
  * interfere with Objective-C++ uses of Objective-C exception handlers, which
  * use |@try| and |@catch|. As a workaround, undefine these macros. */
 #ifdef __OBJC__
 #undef try
 #undef catch
 #endif
-