Don't reuse a GpuProcessHost that failed to send a message

Don't reuse a GpuProcessHost that failed to send a message

When the GPU process dies/gets killed, the Send() can fail (e.g. EPIPE),
triggering lost context recreation, before OnChannelError gets called (happening
when we return to the message loop) which ends up deleting the GpuProcessHost.
So, in the mean time, make sure we don't try to reuse that GpuProcessHost to
recreate a channel.

BUG=129067
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=149984

[apatrick_chromium, 2012-08-03 22:00:57]

lgtm

[commit-bot: I haz the power, 2012-08-03 22:04:20]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/piman@chromium.org/10834165/7001

[commit-bot: I haz the power, 2012-08-03 22:26:40]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/piman@chromium.org/10834165/6003

[commit-bot: I haz the power, 2012-08-03 22:47:45]

Try job failure for 10834165-6003 (retry) on win_rel for step "compile" (clobber
build).
It's a second try, previously, step "compile" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[commit-bot: I haz the power, 2012-08-03 23:00:28]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/piman@chromium.org/10834165/6003

[commit-bot: I haz the power, 2012-08-04 00:26:20]

Change committed as 149984