Use InputTypeNames more in MediaControlElements

Use InputTypeNames more in MediaControlElements

Use existing AtomicStrings instead of a string literals
that need to be converted to them.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=185154

[rwlbuis, 2014-11-11 20:08:22]

rob.buis@samsung.com changed reviewers:
+ chrishtr@chromium.org, philipj@opera.com

[rwlbuis, 2014-11-11 20:08:35]

PTAL

[chrishtr, 2014-11-11 22:29:21]

The CQ bit was checked by chrishtr@chromium.org

[commit-bot: I haz the power, 2014-11-11 22:29:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/716873002/1

[commit-bot: I haz the power, 2014-11-11 22:29:47]

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

[commit-bot: I haz the power, 2014-11-11 22:29:48]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[chrishtr, 2014-11-11 22:34:36]

The CQ bit was checked by chrishtr@chromium.org

[chrishtr, 2014-11-11 22:34:37]

lgtm

[commit-bot: I haz the power, 2014-11-11 22:34:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/716873002/1

[commit-bot: I haz the power, 2014-11-11 23:47:09]

Committed patchset #1 (id:1) as 185154