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

tools/ipc_fuzzer/play_testcase.py

 #!/usr/bin/env python
 # Copyright 2013 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.
 
 """Wrapper around chrome.
 
 Replaces all the child processes (renderer, GPU, plugins and utility) with the
 IPC fuzzer. The fuzzer will then play back a specified testcase.
 
 Depends on ipc_fuzzer being available on the same directory as chrome.
 """
 
 import argparse
 import os
 import platform
 import subprocess
 import sys
 
+CHROME_BINARY_FOR_PLATFORM_DICT = {
+  'LINUX': 'chrome',
+  'MAC': 'Chromium.app/Contents/MacOS/Chromium',
+  'WINDOWS': 'chrome.exe',
+}
+
+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
+
 def main():
   desc = 'Wrapper to run chrome with child processes replaced by IPC fuzzers'
   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')
   parser.add_argument('--gdb-browser', dest='gdb_browser', default=False,
                       action='store_true',
                       help='run browser process inside gdb')
   parser.add_argument('testcase',
                       help='IPC file to be replayed')
   parser.add_argument('chrome_args',
                       nargs=argparse.REMAINDER,
                       help='any additional arguments are passed to chrome')
   args = parser.parse_args()
 
-  chrome_binary = 'chrome'
+  platform = GetPlatform()
+  chrome_binary = CHROME_BINARY_FOR_PLATFORM_DICT[platform]
   fuzzer_binary = 'ipc_fuzzer_replay'
+  if platform == 'WINDOWS':
+    fuzzer_binary += '.exe'
 
   script_path = os.path.realpath(__file__)
   ipc_fuzzer_dir = os.path.dirname(script_path)
   src_dir = os.path.abspath(os.path.join(ipc_fuzzer_dir, os.pardir, os.pardir))
   out_dir =  os.path.join(src_dir, args.out_dir)
   build_dir = os.path.join(out_dir, args.build_type)
 
   chrome_path = os.path.join(build_dir, chrome_binary)
   if not os.path.exists(chrome_path):
     print 'chrome executable not found at ', chrome_path
@@ skipping 40 matching lines @@
     chrome_command.append(switch + '=' + value)
 
   command_line = ' '.join(['\'' + arg + '\'' for arg in chrome_command])
   print 'Executing: ' + command_line
 
   return subprocess.call(chrome_command)
 
 
 if __name__ == "__main__":
   sys.exit(main())