Win should call ::TerminateProcess to exit a renderer process

base/process/process_posix.cc

 // Copyright 2011 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 "base/process/process.h"
 
 #include <errno.h>
 #include <stdint.h>
 #include <sys/resource.h>
 #include <sys/wait.h>
@@ skipping 332 matching lines @@
       result = kill(process_, SIGKILL) == 0;
   }
 
   if (!result)
     DPLOG(ERROR) << "Unable to terminate process " << process_;
 
   return result;
 }
 #endif  // !defined(OS_NACL_NONSFI)
 
+void Process::TerminateCurrentProcessImmediately(int exit_code) const {
+  _exit(exit_code);
+}
+
 bool Process::WaitForExit(int* exit_code) const {
   return WaitForExitWithTimeout(TimeDelta::Max(), exit_code);
 }
 
 bool Process::WaitForExitWithTimeout(TimeDelta timeout, int* exit_code) const {
   // Record the event that this thread is blocking upon (for hang diagnosis).
   base::debug::ScopedProcessWaitActivity process_activity(this);
 
   return WaitForExitWithTimeoutImpl(Handle(), exit_code, timeout);
 }
@@ skipping 13 matching lines @@
   return false;
 }
 #endif  // !defined(OS_LINUX) && !defined(OS_MACOSX)
 
 int Process::GetPriority() const {
   DCHECK(IsValid());
   return getpriority(PRIO_PROCESS, process_);
 }
 
 }  // namespace base