Notify parent frame renderer when OOP child frame renderer crashes

Notify parent frame renderer when OOP child frame renderer crashes

When an out-of-process iframe renderer crashes, this causes the parent
renderer to be notified and it will display a solid color instead of
the previous rendered texture. This will later be changed to a special
'sad frame' bitmap when OOPIF rendering in Blink is further along.

At the time this is being committed the behavior is not
observable because of an independent crash bug (338508).
Commenting out the following line in
RenderViewHostImpl::OnRenderProcessGone() can avert the
crash (though it breaks other behavior):
delegate_->GetFrameTree()->ResetForMainFrameSwap();

R=jam
BUG=325803
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=247987

[kenrb, 2014-01-29 17:41:45]

jam: PTAL?

[jam, 2014-01-30 00:01:24]

lgtm

[commit-bot: I haz the power, 2014-01-30 14:19:31]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/kenrb@chromium.org/147023002/50001

[commit-bot: I haz the power, 2014-01-30 15:47:17]

Retried try job too often on win_rel for step(s) unit_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[commit-bot: I haz the power, 2014-01-30 16:11:43]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/kenrb@chromium.org/147023002/50001

[commit-bot: I haz the power, 2014-01-30 17:54:52]

Change committed as 247987

[commit-bot: I haz the power, 2014-01-30 17:55:00]

CQ bit was unchecked on CL. Ignoring.