Crash in ResourceLoader::releaseResources().

Crash in ResourceLoader::releaseResources().

We are sometimes giving RequestCountTracker the wrong CachedResourceLoader
when starting a resource load.

BUG=240054
TEST=none, the known repro is quite flaky

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=150446

[abarth-chromium, 2013-05-14 21:32:38]

lgtm

[abarth-chromium, 2013-05-14 21:32:58]

It's too bad we don't have a test for this CL.  It's the kind of thing we'll
regress as we refactor this code.

[Nate Chapin, 2013-05-14 21:41:54]

On 2013/05/14 21:32:58, abarth wrote:
> It's too bad we don't have a test for this CL.  It's the kind of thing we'll
> regress as we refactor this code.

Yeah...unfortunately it seems very timing dependent :(

[commit-bot: I haz the power, 2013-05-14 21:41:54]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/japhet@chromium.org/15021014/1

[commit-bot: I haz the power, 2013-05-14 22:35:19]

Retried try job too often on linux_layout_rel for step(s) webkit_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_layo...

[commit-bot: I haz the power, 2013-05-15 16:28:05]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/japhet@chromium.org/15021014/1

[commit-bot: I haz the power, 2013-05-15 17:42:02]

Change committed as 150446