Similar to  issue 803505 , same crash trace

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e4a144fedc9d2a0547ccd9291444ddee6b8d3791

commit e4a144fedc9d2a0547ccd9291444ddee6b8d3791
Author: Qiang Xu <warx@chromium.org>
Date: Mon Jan 22 18:05:39 2018

Disable TraverseSlideThumbnailsOnDrive on debug

GalleryBrowserTest.TraverseSlideThumbnailsOnDrive is flaky on
linux-chromeos-dbg.

TBR=yamaguchi@chromium.org

Bug:  804364 
Change-Id: I4bc10aafdd88311db25197f95023ac9373233584
Reviewed-on: https://chromium-review.googlesource.com/879061
Reviewed-by: Qiang(Joe) Xu <warx@chromium.org>
Commit-Queue: Qiang(Joe) Xu <warx@chromium.org>
Cr-Commit-Position: refs/heads/master@{#530910}
[modify] https://crrev.com/e4a144fedc9d2a0547ccd9291444ddee6b8d3791/chrome/browser/chromeos/file_manager/gallery_browsertest.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/0a450c32017755bb629c14062cd32f4e1aa2e0db

commit 0a450c32017755bb629c14062cd32f4e1aa2e0db
Author: Noel Gordon <noel@chromium.org>
Date: Mon Apr 09 09:58:21 2018

Re-enable GalleryBrowserTest.TraverseSlideThumbnailsOnDrive in debug

According to the flakiness dashboard, this test works in release mode,
and on the much slower ASAN and MSAN bots. Re-enable on the debug bots
to gather new data about  issue 804364  and related.

Bug:  804413 ,  804364 
Change-Id: Ifc3f1f383ca8b4b385ec65412e070748047683da
Reviewed-on: https://chromium-review.googlesource.com/1002345
Reviewed-by: Tatsuhisa Yamaguchi <yamaguchi@chromium.org>
Commit-Queue: Noel Gordon <noel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#549139}
[modify] https://crrev.com/0a450c32017755bb629c14062cd32f4e1aa2e0db/chrome/browser/chromeos/file_manager/gallery_browsertest.cc