GitLab

Currently an XMLHttpRequest that fails without response is shown as "Other"
resource type. This CL fixes the behavior.

BUG=294676

Review URL: https://codereview.chromium.org/302093003

git-svn-id: svn://svn.chromium.org/blink/trunk@175256 bbb929c8-8fbe-4397-9dbb-9b2b20218538