Revert of Close the select box when the parent RWHVA loses focus

Revert of Close the select box when the parent RWHVA loses focus (patchset #2 id:170001 of https://codereview.chromium.org/652793003/)

Reason for revert:
Broke Linux ChromiumOS Tests (dbg)(1):
RenderWidgetHostViewAuraTest.PopupClosesWhenParentLosesFocus (run #1):
[ RUN      ] RenderWidgetHostViewAuraTest.PopupClosesWhenParentLosesFocus
Xlib:  extension "RANDR" missing on display ":9".
../../content/browser/renderer_host/render_widget_host_view_aura_unittest.cc:875: Failure
Value of: observer.destroyed()
  Actual: false
Expected: true
[  FAILED  ] RenderWidgetHostViewAuraTest.PopupClosesWhenParentLosesFocus (10 ms)

Original issue's description:
> Close the select box when the parent RWHVA loses focus
>
> BUG=422264, 414550
> TEST=RenderWidgetHostViewAuraTest.PopupClosesWhenParentLosesFocus
>
> Committed: https://crrev.com/1f909ee8c8ae5cbc92416482374d2228f087684c
> Cr-Commit-Position: refs/heads/master@{#301108}

TBR=tkent@chromium.org,ben@chromium.org,pkotwicz@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=422264, 414550
Committed: https://crrev.com/ded5e3c8493a3e5559e49986de163f2c0bc3fbc3
Cr-Commit-Position: refs/heads/master@{#301127}

[yzshen1, 2014-10-24 16:56:22]

Created Revert of Close the select box when the parent RWHVA loses focus

[commit-bot: I haz the power, 2014-10-24 16:57:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/663483005/1

[commit-bot: I haz the power, 2014-10-24 16:59:02]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-10-24 17:00:07]

Patchset 1 (id:??) landed as
https://crrev.com/ded5e3c8493a3e5559e49986de163f2c0bc3fbc3
Cr-Commit-Position: refs/heads/master@{#301127}