Add instrumentation help figure out why the client ID is sometimes

Add instrumentation help figure out why the client ID is sometimes
missing from uploaded crashes.

BUG=371817
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=269715

[Sigurður Ásgeirsson, 2014-05-09 21:20:21]

Hey guys,

sorry to dump this on you so late on a Friday afternoon. If you have a moment to
review this, I'd like to land it over the weekend (after branch), ship to a
couple of canaries and revert it once I have some data.

Siggi

[Robert Sesek, 2014-05-09 21:34:01]

It's ugly, but it'll do the job. LGTM

[Sigurður Ásgeirsson, 2014-05-09 23:45:46]

Oh but for faint praise :).

Thanks!
On May 9, 2014 5:34 PM, <rsesek@chromium.org> wrote:

> It's ugly, but it'll do the job. LGTM
>
> https://codereview.chromium.org/275213003/
>

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[Sigurður Ásgeirsson, 2014-05-11 15:39:39]

The CQ bit was checked by siggi@chromium.org

[commit-bot: I haz the power, 2014-05-11 15:39:51]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/siggi@chromium.org/275213003/20001

[commit-bot: I haz the power, 2014-05-11 18:11:31]

Change committed as 269715

[Sigurður Ásgeirsson, 2014-05-16 18:01:31]

A revert of this CL has been created in
https://codereview.chromium.org/287173003/ by siggi@chromium.org.

The reason for reverting is: We've collected enough data, so this
instrumentation can now go..