Update histograms.xml for recent Blink UseCounter addition.

Update histograms.xml for recent Blink UseCounter addition.

http://src.chromium.org/viewvc/blink/trunk/Source/core/page/UseCounter.h?r1=150969&r2=154966

NOTRY=true
BUG=
R=isherman@chromium.org, yutak@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=213765

[Yuta Kitamura, 2013-07-25 08:26:07]

Thanks for taking care of this. I actually was not aware
that the enum needs to be in sync with chromium's
histograms.xml. Drive-by LGTM in case it is necessary.

nit: histgrams.xml -> histograms.xml in change description.

[tkent, 2013-07-25 08:35:12]

> nit: histgrams.xml -> histograms.xml in change description.

Oops! Fixed.

[Ilya Sherman, 2013-07-26 01:20:29]

https://codereview.chromium.org/20203003/diff/1/tools/metrics/histograms/hist...
File tools/metrics/histograms/histograms.xml (right):

https://codereview.chromium.org/20203003/diff/1/tools/metrics/histograms/hist...
tools/metrics/histograms/histograms.xml:16895: <int value="22"
label="SVGAnimationElement"/>
Hmm, why did this enum value change?  Was it wrong before?  If not, this change
will make it hard to make sense of data on the dashboard, as there will be
conflicting meanings for this enum value depending on the version of Chrome
that's uploading the data :(

[tkent, 2013-07-26 01:38:41]

https://codereview.chromium.org/20203003/diff/1/tools/metrics/histograms/hist...
File tools/metrics/histograms/histograms.xml (right):

https://codereview.chromium.org/20203003/diff/1/tools/metrics/histograms/hist...
tools/metrics/histograms/histograms.xml:16895: <int value="22"
label="SVGAnimationElement"/>
On 2013/07/26 01:20:30, Ilya Sherman wrote:
> Hmm, why did this enum value change?  Was it wrong before?  If not, this
change
> will make it hard to make sense of data on the dashboard, as there will be
> conflicting meanings for this enum value depending on the version of Chrome
> that's uploading the data :(

Hmm, counting SVGAnimationElement started on July 11.  Only Canary and Dev have
it. We can change the enum value.

[tkent, 2013-07-26 03:08:23]

Updated the patch. PTAL.

[Ilya Sherman, 2013-07-26 04:28:19]

LGTM, thanks.

[tkent, 2013-07-26 05:10:08]

Committed patchset #2 manually as r213765 (presubmit successful).