GitLab

This reverts commit 6bbb9be8.

Reason for revert:

Findit (https://goo.gl/kROfz5) identified CL at revision 831783 as the
culprit for failures in the build cycles as shown on:
https://analysis.chromium.org/waterfall/culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyRAsSDVdmU3VzcGVjdGVkQ0wiMWNocm9taXVtLzZiYmI5YmU4MmE2YTAzY2Y2YWI0ZmVkZTg4YTM0NjVlNjJkMjYzYmEM

Sample Failed Build: https://ci.chromium.org/b/8862216606388821248

Sample Failed Step: compile

Original change's description:
> Toolbar: Apply modularized LayoutManager interface
> 
> This CL removes toolbar's dependencies on LayoutManagerImpl and
> other implementation details, and switched to use the modularize
> LayoutManager interface only.
> 
> Also replaced OverlayPanelManagerObserver implemented on toolbar
> LoadProgressMediator with ObservableSupplier objects injected from
> ToolbarManager.
> 
> Bug: 1127732
> Change-Id: Ib76119890fc52c007c8bf901134c689ccc56407a
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2491578
> Commit-Queue: Jinsuk Kim <jinsukkim@chromium.org>
> Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
> Reviewed-by: Filip Gorski <fgorski@chromium.org>
> Reviewed-by: Patrick Noland <pnoland@chromium.org>
> Reviewed-by: Matthew Jones <mdjones@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#831783}


Change-Id: I1e1530c757218808688bd557646825170f1df55f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1127732
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2564964
Cr-Commit-Position: refs/heads/master@{#831787}