Revert 213298 "Moves calling OnAutoHideState to when exactly the..."

Revert 213298 "Moves calling OnAutoHideState to when exactly the..."

Seems to be related to buildbot failure:
http://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%28dbg%29%281%29/builds/22366

> Moves calling OnAutoHideState to when exactly the state has changed (2nd)
> 
> This method is called when a window is maximized or fullscreen.
> 
> The first attempt was reverted due to a test failure in LauncherTooltipManagerTest,
> and it turns out that's because the observer method is not emitted
> correctly.
> 
> BUG=249509
> TBR=harrym@chromium.org, jamescook@chromium.org
> TEST=manually
> 
> Review URL: https://chromiumcodereview.appspot.com/20056003

TBR=mukai@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=213315

[rlarocque, 2013-07-24 01:36:18]

Committed patchset #1 manually as r213315.