Use codec enum values instead of strings to initialize |media_format_map_|.

Use codec enum values instead of strings to initialize |media_format_map_|.

BUG=461009
Committed: https://crrev.com/76675fed24686f366c32fac4f171affc6a36d1be
Cr-Commit-Position: refs/heads/master@{#385351}

[ddorwin, 2016-04-05 21:01:16]

Patchset #2 (id:20001) has been deleted

[ddorwin, 2016-04-05 21:18:30]

ddorwin@chromium.org changed reviewers:
+ dalecurtis@chromium.org, hubbe@chromium.org

[ddorwin, 2016-04-05 21:18:30]

No more confusing strings!

While not the purpose of this CL, InitializeMimeTypeMaps() now runs in 30-75
microseconds, an apparent decrease from 45-135 in the previous CL
(https://codereview.chromium.org/1728193004/diff/200001/media/base/mime_util_i...).

[DaleCurtis, 2016-04-05 21:20:26]

lgtm

[ddorwin, 2016-04-05 22:38:20]

The CQ bit was checked by ddorwin@chromium.org

[commit-bot: I haz the power, 2016-04-05 22:38:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1864743002/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1864743002/60001

[commit-bot: I haz the power, 2016-04-06 00:39:21]

Committed patchset #3 (id:60001)

[commit-bot: I haz the power, 2016-04-06 00:42:01]

Description was changed from

==========
Use codec enum values instead of strings to initialize |media_format_map_|.

BUG=461009
==========

to

==========
Use codec enum values instead of strings to initialize |media_format_map_|.

BUG=461009

Committed: https://crrev.com/76675fed24686f366c32fac4f171affc6a36d1be
Cr-Commit-Position: refs/heads/master@{#385351}
==========

[commit-bot: I haz the power, 2016-04-06 00:42:02]

Patchset 3 (id:??) landed as
https://crrev.com/76675fed24686f366c32fac4f171affc6a36d1be
Cr-Commit-Position: refs/heads/master@{#385351}