Chrome Version: 69.0.3451.0
OS: MacOS 10.13.4

What steps will reproduce the problem?
(1) Downloaded two extensions.
(2) Only one icon appeared in wrench menu.
(3) Tried to re-download disappeared extension.

What is the expected result?
My original two extensions appear in the wrench menu.

What happens instead?
Crash with the following information:
[76977:775:0605/161808.967722:FATAL:toolbar_actions_bar.cc(226)] Check failed: model_->toolbar_items().size() == toolbar_actions_.size() (2 vs. 1)


Please use labels and text to provide additional information.

If this is a regression (i.e., worked before), please consider using the
bisect tool (https://www.chromium.org/developers/bisect-builds-py) to help
us identify the root cause and more rapidly triage the issue.

For graphics-related bugs, please copy/paste the contents of the about:gpu
page at the end of this report.