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

chrome/installer/util/install_util.cc

Index: chrome/installer/util/install_util.cc
diff --git a/chrome/installer/util/install_util.cc b/chrome/installer/util/install_util.cc
index 56cb9440367c34fcfc313d693d0d648582a28ef2..932a1b1209277f986a4d95111756ee41a47c0478 100644
--- a/chrome/installer/util/install_util.cc
+++ b/chrome/installer/util/install_util.cc
@@ -156,7 +156,9 @@ void InstallUtil::TriggerActiveSetupCommand() {
   base::LaunchOptions launch_options;
   if (base::win::IsMetroProcess())
     launch_options.force_breakaway_from_job_ = true;
-  if (!base::LaunchProcess(cmd.GetCommandLineString(), launch_options, NULL))
+  base::Process process =
+      base::LaunchProcess(cmd.GetCommandLineString(), launch_options);
+  if (!process.IsValid())
     PLOG(ERROR) << cmd.GetCommandLineString();
 }