Revert of Fix docked browser window sometimes appears onscreen after restart

Revert of Fix docked browser window sometimes appears onscreen after restart (patchset #1 id:1 of https://codereview.chromium.org/1055893003/)

Reason for revert:
Broke BrowserWindowCocoaTest.TestMinimizeState on 10.6: https://build.chromium.org/p/chromium.mac/builders/Mac10.6%20Tests/builds/762

Original issue's description:
> Change IsMaximized() to return false if the window is in the dock, and
> a unit test to make sure this is always the case. It turns out
> -isZoomed can sometimes return YES for a docked window, which
> sometimes results in the window becoming undocked on the next restart.
> Please read the long entry in the bug report for a complete explanation
> of how the change fixes the problem.
>
> BUG=452976
>
> Committed: https://crrev.com/de8b6d82a032a4bde620e43e6c580850871d59d8
> Cr-Commit-Position: refs/heads/master@{#323928}

TBR=avi@chromium.org,shrike@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=452976
Committed: https://crrev.com/4e87fae17607eabe7fd7afa4f5daec16d217c868
Cr-Commit-Position: refs/heads/master@{#323961}

[Sergey Ulanov, 2015-04-06 22:18:27]

Created Revert of Fix docked browser window sometimes appears onscreen after
restart

[commit-bot: I haz the power, 2015-04-06 22:18:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1061103003/1

[commit-bot: I haz the power, 2015-04-06 22:20:35]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-06 22:21:33]

Patchset 1 (id:??) landed as
https://crrev.com/4e87fae17607eabe7fd7afa4f5daec16d217c868
Cr-Commit-Position: refs/heads/master@{#323961}