arc: Remove a lint warning from arc_util.cc

The #include is needed for std::max.

BUG=None
TEST=git cl lint

Change-Id: Ib0a0de3191b180c7f0c9774505feecad7e248a7f
Reviewed-on: https://chromium-review.googlesource.com/c/1354401Reviewed-by: Yury Khmel <khmel@chromium.org>
Commit-Queue: Yusuke Sato <yusukes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611907}

components/arc/arc_util.cc

@@ -4,6 +4,7 @@
 
 #include "components/arc/arc_util.h"
 
+#include <algorithm>
 #include <string>
 
 #include "ash/public/cpp/app_types.h"