Revert of Revert of Set frame liveness before calling RenderFrameCreated/RenderFrameDeleted.

Revert of Revert of Set frame liveness before calling RenderFrameCreated/RenderFrameDeleted. (patchset #1 id:1 of https://codereview.chromium.org/1086613003/)

Reason for revert:
Relanding because the test is still failing even with this patch reverted.

Original issue's description:
> Revert of Set frame liveness before calling RenderFrameCreated/RenderFrameDeleted. (patchset #2 id:20001 of https://codereview.chromium.org/1070553005/)
>
> Reason for revert:
> Tentative revert to try to fix BrowserTest.WindowOpenClose, which is consistently failing on chromium.webkit Mac10.6 Tests and Mac10.8 Tests.
>
> It times out during ui_test_utils::NavigateToURLWithDispositionBlockUntilNavigationsComplete and gets killed whilst waiting for the navigations.
>
> It started failing between https://build.chromium.org/p/chromium.webkit/builders/Mac10.8%20Tests/builds/474 and https://build.chromium.org/p/chromium.webkit/builders/Mac10.6%20Tests/builds/29002, so the blamelists are:
>
> Chromium: https://chromium.googlesource.com/chromium/src.git/+log/96626920573e30a2cd02040b7ccec2c56f38b4db..274eb3202c59d4842c191e924577e81f14044af5
>
> Blink: https://chromium.googlesource.com/chromium/blink/+log/7f9db67d6a96399f8e4eae490efa83aa1b59107f..4dd6623614cff05eb3c18cd96f8d6ed089b7965b
>
> This is the only patch that seems at all relevant from amongst those...
>
> Original issue's description:
> > Set frame liveness before calling RenderFrameCreated/RenderFrameDeleted.
> >
> > In the FrameTree unittests, illustrate the liveness of frames in the ASCII
> > dumps. Update some tests so that children aren't born to dead parents.
> >
> > BUG=474231
> >
> > Committed: https://crrev.com/ad74a7e371149624d91f96cf662f70af6d18787f
> > Cr-Commit-Position: refs/heads/master@{#325508}
>
> TBR=nasko@chromium.org,nick@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=474231
>
> Committed: https://crrev.com/5e69a55db837879b5d4ca4b0935cf61742e09751
> Cr-Commit-Position: refs/heads/master@{#325629}

TBR=nasko@chromium.org,nick@chromium.org,johnme@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=474231
Committed: https://crrev.com/6408fed22735589d2db1bf830d496616f9d3e71d
Cr-Commit-Position: refs/heads/master@{#325665}

[Stephen Chennney, 2015-04-17 17:43:04]

Created Revert of Revert of Set frame liveness before calling
RenderFrameCreated/RenderFrameDeleted.

[commit-bot: I haz the power, 2015-04-17 17:43:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1091303003/1

[Stephen Chennney, 2015-04-17 17:44:53]

The CQ bit was unchecked by schenney@chromium.org

[commit-bot: I haz the power, 2015-04-17 17:45:08]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-17 17:46:01]

Patchset 1 (id:??) landed as
https://crrev.com/6408fed22735589d2db1bf830d496616f9d3e71d
Cr-Commit-Position: refs/heads/master@{#325665}