Fix up a few more lint warnings.

Fix up a few more lint warnings.

- Suppress missing drawables in components/web_contents_delegate_android/
- Remove unused progress_bar.xml

BUG=266140
Committed: https://crrev.com/52cdaa72cff9f5167cb28057907bdae5c954971d
Cr-Commit-Position: refs/heads/master@{#319158}

[aurimas (slooooooooow), 2015-03-04 21:42:45]

The CQ bit was checked by aurimas@chromium.org

[aurimas (slooooooooow), 2015-03-04 21:42:47]

The CQ bit was unchecked by aurimas@chromium.org

[aurimas (slooooooooow), 2015-03-04 21:42:57]

aurimas@chromium.org changed reviewers:
+ newt@chromium.org

[aurimas (slooooooooow), 2015-03-04 21:42:58]

PTAL

[newt (away), 2015-03-04 22:11:43]

lgtm

[aurimas (slooooooooow), 2015-03-04 22:14:17]

The CQ bit was checked by aurimas@chromium.org

[commit-bot: I haz the power, 2015-03-04 22:15:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/971223004/1

[commit-bot: I haz the power, 2015-03-04 23:18:39]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-04 23:19:11]

Patchset 1 (id:??) landed as
https://crrev.com/52cdaa72cff9f5167cb28057907bdae5c954971d
Cr-Commit-Position: refs/heads/master@{#319158}