[IPC fuzzer] Properly generate clusterfuzz flags files.

tools/ipc_fuzzer/scripts/ipc_fuzzer_mut.py

Index: tools/ipc_fuzzer/scripts/ipc_fuzzer_mut.py
diff --git a/tools/ipc_fuzzer/scripts/ipc_fuzzer_mut.py b/tools/ipc_fuzzer/scripts/ipc_fuzzer_mut.py
index 28d5239f1aafe38ab71ceeba0475672815ae1ec8..d7e7109a06e8f4021d90d0508912073fe9dc1ebc 100755
--- a/tools/ipc_fuzzer/scripts/ipc_fuzzer_mut.py
+++ b/tools/ipc_fuzzer/scripts/ipc_fuzzer_mut.py
@@ -22,23 +22,19 @@ IPC_MESSAGE_UTIL_APPLICATION = 'ipc_message_util'
 IPCDUMP_MERGE_LIMIT = 50
 
 class MutationalFuzzer:
-  def parse_arguments(self):
+  def __init__(self):
     self.args = utils.parse_arguments()
 
-  def set_application_paths(self):
     chrome_application_path = utils.get_application_path()
     chrome_application_directory = os.path.dirname(chrome_application_path)
 
     self.ipc_message_util_binary = utils.application_name_for_platform(
         IPC_MESSAGE_UTIL_APPLICATION)
     self.ipc_fuzzer_binary = utils.get_fuzzer_application_name()
-    self.ipc_replay_binary = utils.get_replay_application_name()
     self.ipc_message_util_binary_path = os.path.join(
         chrome_application_directory, self.ipc_message_util_binary)
     self.ipc_fuzzer_binary_path = os.path.join(
         chrome_application_directory, self.ipc_fuzzer_binary)
-    self.ipc_replay_binary_path = os.path.join(
-        chrome_application_directory, self.ipc_replay_binary)
 
   def set_corpus(self):
     # Corpus should be set per job as a fuzzer-specific environment variable.
@@ -76,19 +72,17 @@ class MutationalFuzzer:
     if subprocess.call(cmd):
       sys.exit('%s failed.' % self.ipc_fuzzer_binary)
 
-    utils.create_flags_file(
-        mutated_ipcdump_testcase, self.ipc_replay_binary_path)
+    utils.create_flags_file(mutated_ipcdump_testcase)
     os.remove(tmp_ipcdump_testcase)
 
   def main(self):
-    self.parse_arguments()
-    self.set_application_paths()
     self.set_corpus()
     for _ in xrange(self.args.no_of_files):
       self.create_mutated_ipcdump_testcase()
 
     return 0
 
+
 if __name__ == "__main__":
   fuzzer = MutationalFuzzer()
   sys.exit(fuzzer.main())