Increase version update task priority

It's in fact user visible :)

Bug: 1008270
Change-Id: I0b6dafea8883c9aaeb8e76f162dc427029752b93
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1853924Reviewed-by: Denis Kuznetsov <antrim@chromium.org>
Commit-Queue: Roman Sorokin [CET] <rsorokin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#705067}

chrome/browser/chromeos/login/version_info_updater.cc

@@ -63,7 +63,8 @@ void VersionInfoUpdater::StartUpdate(bool is_official_build) {
   if (base::SysInfo::IsRunningOnChromeOS()) {
     base::PostTaskAndReplyWithResult(
         FROM_HERE,
-        {base::ThreadPool(), base::MayBlock(), base::TaskPriority::BEST_EFFORT},
+        {base::ThreadPool(), base::MayBlock(),
+         base::TaskPriority::USER_VISIBLE},
         base::Bind(&version_loader::GetVersion,
                    is_official_build ? version_loader::VERSION_SHORT_WITH_DATE
                                      : version_loader::VERSION_FULL),