MacViews: Rename Cocoa files to avoid conflict with Views.

MacViews: Rename Cocoa files to avoid conflict with Views.

cocoa/media_indicator_button.* is renamed to media_indicator_button_cocoa.* to
avoid conflict with views/media_indicator_button.*

BUG=425229
Committed: https://crrev.com/8faa6b86fd6bdfaa9cb97999b8aaa6bb46df5d44
Cr-Commit-Position: refs/heads/master@{#308439}

[Andre, 2014-12-14 23:40:41]

andresantoso@chromium.org changed reviewers:
+ rsesek@chromium.org

[Andre, 2014-12-14 23:40:41]

Robert PTAL.

[Robert Sesek, 2014-12-15 21:28:33]

LGTM

[Andre, 2014-12-15 21:30:26]

The CQ bit was checked by andresantoso@chromium.org

[commit-bot: I haz the power, 2014-12-15 21:31:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/797393003/1

[commit-bot: I haz the power, 2014-12-15 22:21:52]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-15 22:23:12]

Patchset 1 (id:??) landed as
https://crrev.com/8faa6b86fd6bdfaa9cb97999b8aaa6bb46df5d44
Cr-Commit-Position: refs/heads/master@{#308439}