[Media Controls] Add UMA for rotate-to-fullscreen feature

[Media Controls] Add UMA for rotate-to-fullscreen feature

Measures how often rotate-to-fullscren enters or exits fullscreen:
- Media.Video.RotateToFullscreen.Enter
- Media.Video.RotateToFullscreen.Exit

and whether the screen orientation is allowed to rotate by the user:
- Media.Video.FullscreenOrientationLock.AutoRotateEnabled

BUG=713703
Review-Url: https://codereview.chromium.org/2936413002
Cr-Commit-Position: refs/heads/master@{#480105}
Committed: https://chromium.googlesource.com/chromium/src/+/ce63450732e98d6e1341a97383dc7384cddac1f3

[johnme, 2017-06-15 17:23:29]

johnme@chromium.org changed reviewers:
+ isherman@chromium.org, mlamouri@chromium.org

[Ilya Sherman, 2017-06-15 19:50:52]

Metrics LGTM % a comment:

https://codereview.chromium.org/2936413002/diff/1/tools/metrics/histograms/hi...
File tools/metrics/histograms/histograms.xml (right):

https://codereview.chromium.org/2936413002/diff/1/tools/metrics/histograms/hi...
tools/metrics/histograms/histograms.xml:30027: +    orientation may still be
locked by apps).
Please document when this is recorded.

[mlamouri (slow - plz ping), 2017-06-16 09:30:28]

lgtm with isherman@'s comment applied.

[johnme, 2017-06-16 16:09:10]

Addressed review comment - thanks :)

https://codereview.chromium.org/2936413002/diff/1/tools/metrics/histograms/hi...
File tools/metrics/histograms/histograms.xml (right):

https://codereview.chromium.org/2936413002/diff/1/tools/metrics/histograms/hi...
tools/metrics/histograms/histograms.xml:30027: +    orientation may still be
locked by apps).
On 2017/06/15 19:50:52, Ilya Sherman wrote:
> Please document when this is recorded.

Done.

[johnme, 2017-06-16 16:09:22]

The CQ bit was checked by johnme@chromium.org

[johnme, 2017-06-16 16:09:23]

The patchset sent to the CQ was uploaded after l-g-t-m from
isherman@chromium.org, mlamouri@chromium.org
Link to the patchset: https://codereview.chromium.org/2936413002/#ps20001
(title: "Add description")

[commit-bot: I haz the power, 2017-06-16 16:09:41]

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, 2017-06-16 18:24:01]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1497629362534010,
"parent_rev": "bdfd91d9a149f6189f03368a661f099976f144b1", "commit_rev":
"ce63450732e98d6e1341a97383dc7384cddac1f3"}

[commit-bot: I haz the power, 2017-06-16 18:24:14]

Description was changed from

==========
[Media Controls] Add UMA for rotate-to-fullscreen feature

Measures how often rotate-to-fullscren enters or exits fullscreen:
- Media.Video.RotateToFullscreen.Enter
- Media.Video.RotateToFullscreen.Exit

and whether the screen orientation is allowed to rotate by the user:
- Media.Video.FullscreenOrientationLock.AutoRotateEnabled

BUG=713703
==========

to

==========
[Media Controls] Add UMA for rotate-to-fullscreen feature

Measures how often rotate-to-fullscren enters or exits fullscreen:
- Media.Video.RotateToFullscreen.Enter
- Media.Video.RotateToFullscreen.Exit

and whether the screen orientation is allowed to rotate by the user:
- Media.Video.FullscreenOrientationLock.AutoRotateEnabled

BUG=713703

Review-Url: https://codereview.chromium.org/2936413002
Cr-Commit-Position: refs/heads/master@{#480105}
Committed:
https://chromium.googlesource.com/chromium/src/+/ce63450732e98d6e1341a97383dc...
==========

[commit-bot: I haz the power, 2017-06-16 18:24:20]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/ce63450732e98d6e1341a97383dc...