Fix issues with replay_process in ipc fuzzer. Make it compile on windows.

tools/ipc_fuzzer/mutate/cf_package_builder.py

 #!/usr/bin/env python
 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Creates IPC fuzzer packages suitable for uploading to ClusterFuzz. Stores
 the packages into chrome build directory. See fuzzer_list below for the list of
 fuzzers.
 """
 
 import argparse
 import distutils.archive_util
 import os
 import shutil
 import sys
 import tempfile
 
+FUZZER_LIST = [
+  'ipc_fuzzer_mut',
+  'ipc_fuzzer_gen',
+]
+
+def GetPlatform():
+  platform = None
+  if sys.platform.startswith('win'):
+    platform = 'WINDOWS'
+  elif sys.platform.startswith('linux'):
+    platform = 'LINUX'
+  elif sys.platform == 'darwin':
+    platform = 'MAC'
+
+  assert platform is not None
+  return platform
+
 class CFPackageBuilder:
   def __init__(self):
-    self.fuzzer_list = [
-      'ipc_fuzzer_mut',
-      'ipc_fuzzer_gen',
-    ]
+    self.platform = GetPlatform()
+    if self.platform == 'WINDOWS':
+      self.fuzzer_list = [i + '.exe' for i in FUZZER_LIST]
+    else:
+      self.fuzzer_list = FUZZER_LIST
 
   def parse_args(self):
     desc = 'Builder of IPC fuzzer packages for ClusterFuzz'
     parser = argparse.ArgumentParser(description=desc)
     parser.add_argument('--out-dir', dest='out_dir', default='out',
                         help='output directory under src/ directory')
     parser.add_argument('--build-type', dest='build_type', default='Release',
                         help='Debug vs. Release build')
     self.args = parser.parse_args()
 
@@ skipping 30 matching lines @@
     self.get_paths()
     self.enter_tmp_workdir()
     for fuzzer in self.fuzzer_list:
       self.build_package(fuzzer)
     self.rm_tmp_workdir()
     return 0
 
 if __name__ == "__main__":
   builder = CFPackageBuilder()
   sys.exit(builder.main())