GitLab

Switch from counting usage of the indexedDB property on the global
object to counting indexedDB.open(). The former can get triggered by
code that walks all global properties, while the latter is real
IndexedDB usage.

Change-Id: I36d003321ea0ca24a07034cbce89c33c39c67959
Reviewed-on: https://chromium-review.googlesource.com/1170392Reviewed-by: Daniel Murphy <dmurph@chromium.org>
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#582534}