[Android] spellcheck: add availability UMA.

[Android] spellcheck: add availability UMA.

Add spellchecking service availability measurement on
Android. This measures whether the system spellchecking
service was available at the start of each new
spellchecking session during the editing of textual
input html elements.

Note that the service can be unavailable because the
user has disabled it in the Android settings.

BUG=660074, 629609
Committed: https://crrev.com/d88cfcd00c078a5e54266f1f5f3eda07582f367f
Cr-Commit-Position: refs/heads/master@{#432975}

[timvolodine, 2016-11-15 18:13:17]

The CQ bit was checked by timvolodine@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-15 18:14:08]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[timvolodine, 2016-11-15 19:29:00]

timvolodine@chromium.org changed reviewers:
+ tobiasjs@chromium.org

[timvolodine, 2016-11-15 19:29:33]

timvolodine@chromium.org changed reviewers:
+ isherman@chromium.org

[timvolodine, 2016-11-15 19:29:34]

+isherman@ : for histograms.xml

[commit-bot: I haz the power, 2016-11-15 19:40:59]

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

[commit-bot: I haz the power, 2016-11-15 19:41:00]

Dry run: This issue passed the CQ dry run.

[Ilya Sherman, 2016-11-15 22:30:17]

lgtm

[Tobias Sargeant, 2016-11-17 15:08:03]

On 2016/11/15 22:30:17, Ilya Sherman wrote:
> lgtm

RS LGTM

[timvolodine, 2016-11-17 16:55:47]

The CQ bit was checked by timvolodine@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-17 16:56:17]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[timvolodine, 2016-11-17 17:00:27]

The CQ bit was checked by timvolodine@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-17 17:00:56]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[timvolodine, 2016-11-17 17:17:57]

On 2016/11/17 15:08:03, Tobias Sargeant wrote:
> On 2016/11/15 22:30:17, Ilya Sherman wrote:
> > lgtm
> 
> RS LGTM

Thanks for the reviews, I've added some more tweaks to only record UMA at the
start of a new session in order to not have bias (due to optimization when
spellchecking is not available). Also clarified the histogram description.

[timvolodine, 2016-11-17 19:43:58]

Description was changed from

==========
[Android] spellcheck: add availability UMA.

Add spellchecking service availability measurement on
Android. This measures if the system spellchecking
service was available at the time of request (e.g.
during editing a textual input html elements.

Note that the service can be unavailable because the
user has disabled it in the Android settings.

BUG=660074, 629609
==========

to

==========
[Android] spellcheck: add availability UMA.

Add spellchecking service availability measurement on
Android. This measures whether the system spellchecking
service was available at the start of each new
spellchecking session during the editing of textual
input html elements.

Note that the service can be unavailable because the
user has disabled it in the Android settings.

BUG=660074, 629609
==========

[commit-bot: I haz the power, 2016-11-17 20:07:55]

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

[commit-bot: I haz the power, 2016-11-17 20:07:56]

Dry run: This issue passed the CQ dry run.

[timvolodine, 2016-11-17 20:13:12]

The CQ bit was checked by timvolodine@chromium.org

[timvolodine, 2016-11-17 20:13:12]

The patchset sent to the CQ was uploaded after l-g-t-m from
isherman@chromium.org, tobiasjs@chromium.org
Link to the patchset: https://codereview.chromium.org/2503933002/#ps40001
(title: "tweak histogram description")

[commit-bot: I haz the power, 2016-11-17 20:14:19]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-17 21:46:32]

Description was changed from

==========
[Android] spellcheck: add availability UMA.

Add spellchecking service availability measurement on
Android. This measures whether the system spellchecking
service was available at the start of each new
spellchecking session during the editing of textual
input html elements.

Note that the service can be unavailable because the
user has disabled it in the Android settings.

BUG=660074, 629609
==========

to

==========
[Android] spellcheck: add availability UMA.

Add spellchecking service availability measurement on
Android. This measures whether the system spellchecking
service was available at the start of each new
spellchecking session during the editing of textual
input html elements.

Note that the service can be unavailable because the
user has disabled it in the Android settings.

BUG=660074, 629609
==========

[commit-bot: I haz the power, 2016-11-17 21:46:34]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-11-17 21:51:44]

Description was changed from

==========
[Android] spellcheck: add availability UMA.

Add spellchecking service availability measurement on
Android. This measures whether the system spellchecking
service was available at the start of each new
spellchecking session during the editing of textual
input html elements.

Note that the service can be unavailable because the
user has disabled it in the Android settings.

BUG=660074, 629609
==========

to

==========
[Android] spellcheck: add availability UMA.

Add spellchecking service availability measurement on
Android. This measures whether the system spellchecking
service was available at the start of each new
spellchecking session during the editing of textual
input html elements.

Note that the service can be unavailable because the
user has disabled it in the Android settings.

BUG=660074, 629609

Committed: https://crrev.com/d88cfcd00c078a5e54266f1f5f3eda07582f367f
Cr-Commit-Position: refs/heads/master@{#432975}
==========

[commit-bot: I haz the power, 2016-11-17 21:51:45]

Patchset 3 (id:??) landed as
https://crrev.com/d88cfcd00c078a5e54266f1f5f3eda07582f367f
Cr-Commit-Position: refs/heads/master@{#432975}