Fix some lint warnings for android_webview_test_apk

Fix some lint warnings for android_webview_test_apk

Reorder uses-sdk and uses-permission to above application tag.
Remove INJECT_EVENTS permission since we don't need it.

BUG=

Committed: https://crrev.com/fc6b8fea5a3ed8cf617444263d99478c054fb0d9
Cr-Commit-Position: refs/heads/master@{#320132}

[boliu, 2015-03-11 18:35:15]

boliu@chromium.org changed reviewers:
+ hush@chromium.org

[boliu, 2015-03-11 18:35:16]

One more..

[hush (inactive), 2015-03-11 18:45:59]

hush@chromium.org changed reviewers:
+ hush@chromium.org

[hush (inactive), 2015-03-11 18:45:59]

The CQ bit was checked by hush@chromium.org

[hush (inactive), 2015-03-11 18:46:00]

lgtm

[commit-bot: I haz the power, 2015-03-11 18:47:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/998003002/1

[commit-bot: I haz the power, 2015-03-11 20:03:12]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-11 20:03:35]

Patchset 1 (id:??) landed as
https://crrev.com/fc6b8fea5a3ed8cf617444263d99478c054fb0d9
Cr-Commit-Position: refs/heads/master@{#320132}