Adds histograms for physical keyboard autocorrect feature.

Adds histograms for physical keyboard autocorrect feature.

 - InputMethod.PkCommit.Index
 - InputMethod.PkCommit.Type

BUG=367631
TEST=None

Committed: https://crrev.com/dcdf20ee99f921ef0d04fd8b69b7aedf884523cf
Cr-Commit-Position: refs/heads/master@{#314736}

[Shu Chen, 2015-02-04 00:38:16]

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

[Shu Chen, 2015-02-04 00:38:17]

Can you please review this cl? Thanks

[Ilya Sherman, 2015-02-04 01:18:10]

Where is the code that emits these histograms?  Can you please merge this CL
into the one implementing the data gathering?

[Ilya Sherman, 2015-02-04 18:57:03]

LGTM % nits -- thanks.

https://codereview.chromium.org/893313003/diff/1/tools/metrics/histograms/his...
File tools/metrics/histograms/histograms.xml (right):

https://codereview.chromium.org/893313003/diff/1/tools/metrics/histograms/his...
tools/metrics/histograms/histograms.xml:10876: +    The suggestion index
(1-based) of the suggestion list item which user
nit: "which user chooses" -> "which the user chooses"

https://codereview.chromium.org/893313003/diff/1/tools/metrics/histograms/his...
tools/metrics/histograms/histograms.xml:10884: +    The suggestion accuracy type
which user chooses to commit for physical
Ditto

[Shu Chen, 2015-02-05 02:05:14]

Thanks for your review!

https://codereview.chromium.org/893313003/diff/1/tools/metrics/histograms/his...
File tools/metrics/histograms/histograms.xml (right):

https://codereview.chromium.org/893313003/diff/1/tools/metrics/histograms/his...
tools/metrics/histograms/histograms.xml:10876: +    The suggestion index
(1-based) of the suggestion list item which user
On 2015/02/04 18:57:03, Ilya Sherman wrote:
> nit: "which user chooses" -> "which the user chooses"

Done.

https://codereview.chromium.org/893313003/diff/1/tools/metrics/histograms/his...
tools/metrics/histograms/histograms.xml:10884: +    The suggestion accuracy type
which user chooses to commit for physical
On 2015/02/04 18:57:03, Ilya Sherman wrote:
> Ditto

Done.

[Shu Chen, 2015-02-05 02:05:45]

New patchsets have been uploaded after l-g-t-m from isherman@chromium.org

[Shu Chen, 2015-02-05 02:07:21]

The CQ bit was checked by shuchen@chromium.org

[commit-bot: I haz the power, 2015-02-05 02:07:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/893313003/40001

[commit-bot: I haz the power, 2015-02-05 03:38:30]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-02-05 03:40:24]

Patchset 3 (id:??) landed as
https://crrev.com/dcdf20ee99f921ef0d04fd8b69b7aedf884523cf
Cr-Commit-Position: refs/heads/master@{#314736}