GitLab

backend."

Original change's description:
> Read later: Add a method to notify update for reading list backend.
>
> Adds an observer method to notify update for reading list backend.

OCL:https://chromium-review.googlesource.com/c/chromium/src/+/2519151
Revert:https://chromium-review.googlesource.com/c/chromium/src/+/2532074
Revert bug:1147311

Difference: None, the ASAN issue is fixed in the previous reland:
https://chromium-review.googlesource.com/c/chromium/src/+/2532911

TBR=dtrainor@chromium.org

Bug: 1139133
Change-Id: I4911f5e8d30fd0fb7f6e19116b7554f4e78b0a1e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2535019Reviewed-by: Xing Liu <xingliu@chromium.org>
Commit-Queue: Xing Liu <xingliu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#827130}