[MessageLoop cleanup] Mass migrate away from MessageLoop::QuitWhenIdleClosure().

TBR=danakj@chromium.org, kylechar@chromium.org

Bug: 825327
Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Change-Id: I0d9637bd1a7ef0c7096482d0e612f67da3a8dc1d
Reviewed-on: https://chromium-review.googlesource.com/1055887
Reviewed-by: kylechar <kylechar@chromium.org>
Reviewed-by: danakj <danakj@chromium.org>
Reviewed-by: Gabriel Charette <gab@chromium.org>
Commit-Queue: Gabriel Charette <gab@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#559043}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: ea9180109b256256802c204bb18b0381f392d21e
1 file changed