DescriptionRevert 235267 "Fix crash in WebContentsViewAura::WindowObserver ..."
> Fix crash in WebContentsViewAura::WindowObserver that happens when switching tabs. The exact repro steps were:
>
> 1) open an empty page
> 2) print preview
> 3) open a new tab
> 4) go back to original tab
> 5) close print preview
> 6) switch to the new tab
>
> The crash happened at step 4 because the second tab got removed from the same root window as the print preview's observer. We weren't unobserving all the children of the root window at that point.
>
> BUG=318791
> R=ben@chromium.org
>
> Review URL: https://codereview.chromium.org/69813005
TBR=jam@chromium.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=235277
Patch Set 1 #
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