Revert of mac: Toolbar renders incorrectly when downloads bar is open.

Revert of mac: Toolbar renders incorrectly when downloads bar is open. (https://codereview.chromium.org/419683008/)

Reason for revert:
 NSInvalidArgumentException reason Unlocking Focus on wrong view (<NSView: 0x#>), expected <FastResizeView: 0x#>

https://code.google.com/p/chromium/issues/detail?id=397089

Original issue's description:
> mac: Toolbar renders incorrectly when downloads bar is open.
> 
> The toolbar's superview chromeContentView was incorrectly sized and was too
> small. This happened because chromeContentView's layout was not being updated
> in -[BrowserWindowController layoutSubviews].
> 
> I updated the unit tests in browser_window_controller_unittest.mm with 2 changes:
> - All layout checking should use window coordinates, to ensure consistency.
> - Layout checking should ensure that the frame of each view is within the
> bounds of the superview.
> 
> BUG=396740
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=285796

TBR=shess@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=396740
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=286042

[erikchen, 2014-07-29 01:22:36]

Created Revert of mac: Toolbar renders incorrectly when downloads bar is open.

[commit-bot: I haz the power, 2014-07-29 01:25:00]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/erikchen@chromium.org/425853007/1

[commit-bot: I haz the power, 2014-07-29 01:26:25]

Change committed as 286042

[Scott Hess - ex-Googler, 2014-07-29 01:42:02]

lgtm