Revert 238283 "Infobar system refactor."

Revert 238283 "Infobar system refactor."

Crashes on android

BUG=325216
> Infobar system refactor.
> 
> This changes the ownership model of infobars so that InfoBars are long-lived and
> own their InfoBarDelegates directly.  The InfoBarService pseudo-owns the
> InfoBars (instead of deleting them directly, it tells them when they're unowned
> and expects them to delete themselves).
> 
> This fixes leaks when infobars are closed while not visible (e.g. in a
> background tab) and in general makes the system clearer and easier to reason
> about.
> 
> BUG=62154
> TEST=none
> R=erg@chromium.org, sail@chromium.org, sky@chromium.org
> 
> Review URL: https://codereview.chromium.org/22694006

TBR=pkasting@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=238402

[tonyg, 2013-12-03 15:39:04]

Committed patchset #1 manually as r238402.