[DevTools] Support broken UMA metric from M49 frontend.

[DevTools] Support broken UMA metric from M49 frontend.

This patch mitigates bad message crash due to wrong UMA metric
introduced in https://codereview.chromium.org/1520403004.
It was reverted later, but was not merged to M49.

BUG=603789
Committed: https://crrev.com/92efcfdf8fdbdb17af835a889ed6ee5bed729bca
Cr-Commit-Position: refs/heads/master@{#387793}

[dgozman, 2016-04-16 00:15:15]

dgozman@chromium.org changed reviewers:
+ pfeldman@chromium.org

[dgozman, 2016-04-16 00:15:16]

Take a look please.

[dgozman, 2016-04-16 00:15:29]

Description was changed from

==========
[DevTools] Support broken UMA metric from M49 frontend.

This patch mitigates bad message crash due to wrong UMA metric
introduced in https://codereview.chromium.org/1520403004.
It was reverted later, but was not merged to M49.

BUG=603789
==========

to

==========
[DevTools] Support broken UMA metric from M49 frontend.

This patch mitigates bad message crash due to wrong UMA metric
introduced in https://codereview.chromium.org/1520403004.
It was reverted later, but was not merged to M49.

BUG=603789
==========

[dgozman, 2016-04-16 00:15:29]

dgozman@chromium.org changed reviewers:
+ caseq@chromium.org

[caseq, 2016-04-16 00:34:27]

The CQ bit was checked by caseq@chromium.org

[caseq, 2016-04-16 00:34:28]

lgtm

[commit-bot: I haz the power, 2016-04-16 00:34:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1892743005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1892743005/1

[commit-bot: I haz the power, 2016-04-16 02:23:02]

Description was changed from

==========
[DevTools] Support broken UMA metric from M49 frontend.

This patch mitigates bad message crash due to wrong UMA metric
introduced in https://codereview.chromium.org/1520403004.
It was reverted later, but was not merged to M49.

BUG=603789
==========

to

==========
[DevTools] Support broken UMA metric from M49 frontend.

This patch mitigates bad message crash due to wrong UMA metric
introduced in https://codereview.chromium.org/1520403004.
It was reverted later, but was not merged to M49.

BUG=603789
==========

[commit-bot: I haz the power, 2016-04-16 02:23:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-16 02:25:10]

Description was changed from

==========
[DevTools] Support broken UMA metric from M49 frontend.

This patch mitigates bad message crash due to wrong UMA metric
introduced in https://codereview.chromium.org/1520403004.
It was reverted later, but was not merged to M49.

BUG=603789
==========

to

==========
[DevTools] Support broken UMA metric from M49 frontend.

This patch mitigates bad message crash due to wrong UMA metric
introduced in https://codereview.chromium.org/1520403004.
It was reverted later, but was not merged to M49.

BUG=603789

Committed: https://crrev.com/92efcfdf8fdbdb17af835a889ed6ee5bed729bca
Cr-Commit-Position: refs/heads/master@{#387793}
==========

[commit-bot: I haz the power, 2016-04-16 02:25:12]

Patchset 1 (id:??) landed as
https://crrev.com/92efcfdf8fdbdb17af835a889ed6ee5bed729bca
Cr-Commit-Position: refs/heads/master@{#387793}