Revert of [Extensions Toolbar] Properly render newly-added extensions

Revert of [Extensions Toolbar] Properly render newly-added extensions (patchset #1 id:1 of https://codereview.chromium.org/732203002/)

Reason for revert:
[Sheriff] Makes ExtensionActionContextMenuControllerTest.BrowserAction flaky on Mac and Mac dbg:

Starting here:
http://build.chromium.org/p/chromium.mac/builders/Mac10.6%20Tests/builds/681
http://build.chromium.org/p/chromium.mac/builders/Mac10.9%20Tests%20%28dbg%29/builds/207

Original issue's description:
> [Extensions Toolbar] Properly render newly-added extensions
>
> Fix a regression where newly-added extensions were not properly drawn.
> Also have the newly-installed extension button stop tracking, so it doesn't try
> to set state when the popup closes.
>
> BUG=433817
>
> Committed: https://crrev.com/ebcd353dbbfff82230807a5d81dd8cd1b9b8441e
> Cr-Commit-Position: refs/heads/master@{#304503}

TBR=avi@chromium.org,rsesek@chromium.org,rdevlin.cronin@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=433817
Committed: https://crrev.com/c4ed7d8c09e3d3b24289f69d985f51b802e4267f
Cr-Commit-Position: refs/heads/master@{#304578}

[Michael Achenbach, 2014-11-18 08:29:42]

Created Revert of [Extensions Toolbar] Properly render newly-added extensions

[commit-bot: I haz the power, 2014-11-18 08:30:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/736643002/1

[commit-bot: I haz the power, 2014-11-18 08:31:05]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-11-18 08:31:44]

Patchset 1 (id:??) landed as
https://crrev.com/c4ed7d8c09e3d3b24289f69d985f51b802e4267f
Cr-Commit-Position: refs/heads/master@{#304578}

[Avi (use Gerrit), 2014-11-18 16:18:05]

On 2014/11/18 08:31:44, I haz the power (commit-bot) wrote:
> Patchset 1 (id:??) landed as
> https://crrev.com/c4ed7d8c09e3d3b24289f69d985f51b802e4267f
> Cr-Commit-Position: refs/heads/master@{#304578}

Oh well. LGTM