Fix ipc fuzzer crash

tools/ipc_fuzzer/replay/replay_process.cc

 // 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.
 
 #include "tools/ipc_fuzzer/replay/replay_process.h"
 
 #include <limits.h>
 #include <string>
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 45 matching lines @@
     return false;
   }
 
   // Log to both stderr and file destinations.
   logging::SetMinLogLevel(logging::LOG_ERROR);
   logging::LoggingSettings settings;
   settings.logging_dest = logging::LOG_TO_ALL;
   settings.log_file = FILE_PATH_LITERAL("ipc_replay.log");
   logging::InitLogging(settings);
 
+  // Make sure to initialize Mojo before starting the IO thread.
+  InitializeMojo();
+
   io_thread_.StartWithOptions(
       base::Thread::Options(base::MessageLoop::TYPE_IO, 0));
 
 #if defined(OS_POSIX)
   base::GlobalDescriptors* g_fds = base::GlobalDescriptors::GetInstance();
   g_fds->Set(kPrimaryIPCChannel,
              kPrimaryIPCChannel + base::GlobalDescriptors::kBaseDescriptor);
 #endif
 
-  InitializeMojo();
-
   return true;
 }
 
 void ReplayProcess::OpenChannel() {
   std::string channel_name =
       base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
           switches::kProcessChannelID);
 
   // TODO(morrita): As the adoption of ChannelMojo spreads, this
   // criteria has to be updated.
@@ skipping 50 matching lines @@
   return true;
 }
 
 void ReplayProcess::OnChannelError() {
   LOG(ERROR) << "Channel error, quitting after "
              << message_index_ << " messages";
   base::MessageLoop::current()->Quit();
 }
 
 }  // namespace ipc_fuzzer