Add note about dev channel UseCount skew to dashboard summary.

Add note about dev channel UseCount skew to dashboard summary.

This patch adds a note to the FeatureObserver summary in histograms.xml
about the incorrect numbers due to crbug.com/341631.

BUG=341631
Committed: https://crrev.com/49ce0fa0fdef9a601026c0b817330e07705b6841
Cr-Commit-Position: refs/heads/master@{#295921}

[Ilya Sherman, 2014-02-12 22:39:55]

LGTM % nit.  Thanks.

https://codereview.chromium.org/160773002/diff/1/tools/metrics/histograms/his...
File tools/metrics/histograms/histograms.xml (right):

https://codereview.chromium.org/160773002/diff/1/tools/metrics/histograms/his...
tools/metrics/histograms/histograms.xml:21818: +    crbug.com/341631: dev
numbers from 34.0.1800.1 to 34.0.1833.4 are incorrect.
nit: I'd add something like "Watch out:" or "Note" as a prefix to this sentence.

https://codereview.chromium.org/160773002/diff/1/tools/metrics/histograms/his...
tools/metrics/histograms/histograms.xml:21818: +    crbug.com/341631: dev
numbers from 34.0.1800.1 to 34.0.1833.4 are incorrect.
nit: I'd add something like "Watch out:" or "Note:" as a prefix to this
sentence.

[pdr., 2014-02-13 01:28:36]

The CQ bit was checked by pdr@chromium.org

[commit-bot: I haz the power, 2014-02-13 01:33:06]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pdr@chromium.org/160773002/50001

[commit-bot: I haz the power, 2014-02-13 02:41:41]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-02-13 02:41:42]

Retried try job too often on win_rel for step(s) app_list_unittests,
ash_unittests, aura_unittests, base_unittests, browser_tests,
cacheinvalidation_unittests, cc_unittests, check_deps, check_deps2git,
chrome_elf_unittests, chromedriver_unittests, components_unittests,
compositor_unittests, content_browsertests, content_unittests, crypto_unittests,
events_unittests, google_apis_unittests, gpu_unittests,
installer_util_unittests, interactive_ui_tests, ipc_tests, jingle_unittests,
media_unittests, mini_installer_test, nacl_integration, net_unittests,
ppapi_unittests, printing_unittests, remoting_unittests, sql_unittests,
sync_integration_tests, sync_unit_tests, telemetry_perf_unittests,
telemetry_unittests, unit_tests, views_unittests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[Ilya Sherman, 2014-09-20 01:02:47]

Hi, what's the status of this CL?

[pdr., 2014-09-22 03:00:05]

On 2014/09/20 01:02:47, Ilya Sherman wrote:
> Hi, what's the status of this CL?

I thought this landed ages ago :(

This still looks good, lets try the CQ again.

[pdr., 2014-09-22 03:00:25]

The CQ bit was checked by pdr@chromium.org

[commit-bot: I haz the power, 2014-09-22 03:01:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/160773002/50001

[commit-bot: I haz the power, 2014-09-22 03:59:27]

Committed patchset #2 (id:50001) as 5675f345b7fbf5885b069e65a8ccc1a3c2aa1014

[commit-bot: I haz the power, 2014-09-22 03:59:58]

Patchset 2 (id:??) landed as
https://crrev.com/49ce0fa0fdef9a601026c0b817330e07705b6841
Cr-Commit-Position: refs/heads/master@{#295921}