Revert of "Added common layout framework for system menu rows." (patchset #4 id:60001 of https://codereview.chromium.org/2439093002/ )

Reason for revert:
TriViewTest.ViewsRemovedOnRemoveAllChildren is leaking on Linux Chromium OS ASan LSan Tests (1)
https://build.chromium.org/p/chromium.memory/builders/Linux%20Chromium%20OS%20ASan%20LSan%20Tests%20%281%29/builds/17234

Original issue's description:
> Reland of "Added common layout framework for system menu rows."
>
> Added common layout framework for system menu rows.
>
> Currently most of the system menu rows define their own layouts even
> though many rows should have the same layout.  Additionally we have to
> support two separate layout schemes while material design is being
> implemented.  Thus this CL lays the ground work to make it easier to
> support multiple layout schemes and a centralized layout source.
>
> Follow-up TODO:
> - wire in the new layouts to the system menu rows
>
> BUG=657669
>
> Originally landed here: https://chromiumcodereview.appspot.com/2414103003/
> Reverted here: https://codereview.chromium.org/2441923004/
>
> Committed: https://crrev.com/44fcf74b6ff76829c51a504693629c6278558bab
> Cr-Commit-Position: refs/heads/master@{#427851}

TBR=sky@chromium.org,tdanderson@chromium.org,bruthig@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=657669

Review-Url: https://codereview.chromium.org/2460443002
Cr-Commit-Position: refs/heads/master@{#427936}
16 files changed