Upgrade the windows specific version of LaunchProcess to avoid raw handles.

content/browser/child_process_launcher.cc

Index: content/browser/child_process_launcher.cc
diff --git a/content/browser/child_process_launcher.cc b/content/browser/child_process_launcher.cc
index 3529a745eb60892568616a02c1c7572e431fea1d..6239e21e259d28d22b5aba5fe679de29aa512bca 100644
--- a/content/browser/child_process_launcher.cc
+++ b/content/browser/child_process_launcher.cc
@@ -533,7 +533,7 @@ void ChildProcessLauncher::Context::TerminateInternal(
     ZygoteHostImpl::GetInstance()->EnsureProcessTerminated(process.Handle());
   } else
 #endif  // !OS_MACOSX
-  base::EnsureProcessTerminated(process.Handle());
+  base::EnsureProcessTerminated(process.Pass());
 #endif  // OS_POSIX
 #endif  // defined(OS_ANDROID)
 }