Prepare for removal of source_filter.gypi:

runtime/bin/process_win.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-#include <process.h>
+#include "platform/globals.h"
+#if defined(TARGET_OS_WINDOWS)
+
+#include <process.h>  // NOLINT
 
 #include "bin/builtin.h"
 #include "bin/process.h"
 #include "bin/eventhandler.h"
 #include "bin/log.h"
 #include "bin/thread.h"
 #include "bin/utils.h"
-#include "platform/globals.h"
 
 static const int kReadHandle = 0;
 static const int kWriteHandle = 1;
 
 
 // ProcessInfo is used to map a process id to the process handle,
 // wait handle for registered exit code event and the pipe used to
 // communicate the exit code of the process to Dart.
 // ProcessInfo objects are kept in the static singly-linked
 // ProcessInfoList.
@@ skipping 629 matching lines @@
 
 
 void Process::TerminateExitCodeHandler() {
   // Nothing needs to be done on Windows.
 }
 
 
 intptr_t Process::CurrentProcessId() {
   return static_cast<intptr_t>(GetCurrentProcessId());
 }
+
+#endif  // defined(TARGET_OS_WINDOWS)