Add UTILITY_PROCESS_CRASH as valid reboot source.

Bug: internal b/166313191
Test: None
Change-Id: I2d9c60c33a9076f73140a2b6181820ec2382c3b4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2643401Reviewed-by: Luke Halliwell (slow) <halliwell@chromium.org>
Commit-Queue: Guohui Deng <guohuideng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#846235}

chromecast/system/reboot/reboot_util_core.cc

@@ -42,6 +42,7 @@ bool RebootUtil::IsValidRebootSource(RebootShlib::RebootSource reboot_source) {
     case RebootShlib::RebootSource::OVERHEAT:
     case RebootShlib::RebootSource::REGENERATE_CLOUD_ID:
     case RebootShlib::RebootSource::REPEATED_OOM:
+    case RebootShlib::RebootSource::UTILITY_PROCESS_CRASH:
     case RebootShlib::RebootSource::GRACEFUL_RESTART:
     case RebootShlib::RebootSource::UNGRACEFUL_RESTART:
       return true;