queryObjects command line API return array instead of sending
inspectRequest notification.

R=pfeldman@chromium.org

Bug: chromium:825349
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ie6c64419cb108b313c43b66eab533c5a7d5d9024
Reviewed-on: https://chromium-review.googlesource.com/978464
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Pavel Feldman <pfeldman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52197}