GitLab

- Resizes toolbars.
- Updates fakeOmnibox height.

screenshots:
https://drive.google.com/drive/folders/1VloKJh9nJOi-73XmBTH_QAXQRbTN1wuo?usp=sharing

Bug: 1035850
Change-Id: If97c06b1cb9257fe490a75a4d86b703f6426940b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1978001
Commit-Queue: Ewann Pellé <ewannpv@chromium.org>
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Cr-Commit-Position: refs/heads/master@{#737314}