Revert "Fix PIP window being blank after minimize/show"

This reverts commit e0c1b7c048166a05cb1a07ef438fcca60261453f.

Reason for revert:

Findit ( identified CL at revision 653890 as the
culprit for flakes in the build cycles as shown on:

Sample Failed Build:

Sample Failed Step: views_unittests

Sample Flaky Test: DesktopWindowTreeHostX11Test.SetVisible

Original change's description:
> Fix PIP window being blank after minimize/show
> DesktopWindowTreeHostX11::SetVisible only made the call into
> OnNativeWidgetVisibilityChanged when transitioning from shown
> to minimized and not vice versa.  This is because this change
> considered IsVisible to be true when minimized, which made
> IsVisible always true in this case.  This caused layers to be hidden
> but never shown again.
> Bug: 949199
> Change-Id: Ieb31ac5e6856645918aa337f34d47efb947c3910
> Reviewed-on:
> Reviewed-by: Scott Violet <>
> Commit-Queue: enne <>
> Cr-Commit-Position: refs/heads/master@{#653890}

Change-Id: I2bb1577162142929230515801a5f13a110792964
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 949199
Cr-Commit-Position: refs/heads/master@{#653931}
4 files changed