apk_helper: Extract all values from manifest rather than dump badging

apk_helper: Extract all values from manifest rather than dump badging

- dump xmltree and dump badging take the same amount of time to run
- Might as well speed things up by using only the (cached) manifest

BUG=540857
Committed: https://crrev.com/e7b15a576120435acb2ad7de8efb8d94ebd6347d
Cr-Commit-Position: refs/heads/master@{#353296}

[agrieve, 2015-10-09 00:55:54]

agrieve@chromium.org changed reviewers:
+ jbudorick@chromium.org

[agrieve, 2015-10-09 00:56:08]

On 2015/10/09 00:55:54, agrieve wrote:
> mailto:agrieve@chromium.org changed reviewers:
> + mailto:jbudorick@chromium.org

♦

[jbudorick, 2015-10-09 01:10:00]

lgtm

eagerly awaiting ♥ and ♣

[agrieve, 2015-10-09 14:37:57]

The CQ bit was checked by agrieve@chromium.org

[commit-bot: I haz the power, 2015-10-09 14:38:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1389363003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1389363003/1

[commit-bot: I haz the power, 2015-10-09 15:44:18]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-09 15:44:55]

Patchset 1 (id:??) landed as
https://crrev.com/e7b15a576120435acb2ad7de8efb8d94ebd6347d
Cr-Commit-Position: refs/heads/master@{#353296}