Update histograms.xml wrt new V8.Compile{Cacheable,Noncacheable}MicroSeconds histograms.

Update histograms.xml wrt new V8.Compile{Cacheable,Noncacheable}MicroSeconds histograms.

R=asvitkine@chromium.org, vogelheim@chromium.org
BUG=chromium:399580
Committed: https://crrev.com/bf0d63f917cdd5d537bc073135af5b91483c31ba
Cr-Commit-Position: refs/heads/master@{#313716}

[Yang, 2015-01-29 08:42:10]

This reflects this blink change: https://codereview.chromium.org/886713003/

[Alexei Svitkine (slow), 2015-01-29 14:38:14]

lgtm

https://codereview.chromium.org/886463009/diff/1/tools/metrics/histograms/his...
File tools/metrics/histograms/histograms.xml (right):

https://codereview.chromium.org/886463009/diff/1/tools/metrics/histograms/his...
tools/metrics/histograms/histograms.xml:39821: +    Time spent compiling a
script that maybe be subject to caching.
Nit: maybe -> may be

[Yang, 2015-01-29 15:06:47]

The CQ bit was checked by yangguo@chromium.org

[commit-bot: I haz the power, 2015-01-29 15:07:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/886463009/20001

[commit-bot: I haz the power, 2015-01-29 16:06:37]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-01-29 16:07:40]

Patchset 2 (id:??) landed as
https://crrev.com/bf0d63f917cdd5d537bc073135af5b91483c31ba
Cr-Commit-Position: refs/heads/master@{#313716}