GN (android): Append ".cr" to component .so's to avoid zygote lib collisions

GN (android): Append ".cr" to component .so's to avoid zygote lib collisions

With this, ChromePublic now launches with is_component_build = true

BUG=500882
Committed: https://crrev.com/a2daf08ffddf4549160f3925383b457a2eb03c7f
Cr-Commit-Position: refs/heads/master@{#338612}

[agrieve, 2015-07-11 02:15:53]

agrieve@chromium.org changed reviewers:
+ brettw@chromium.org, cjhopman@chromium.org

[brettw, 2015-07-13 17:04:57]

owners lgtm but Chris should definitely review.

[cjhopman, 2015-07-13 21:59:51]

lgtm

[agrieve, 2015-07-14 00:58:20]

The CQ bit was checked by agrieve@chromium.org

[agrieve, 2015-07-14 00:58:21]

The patchset sent to the CQ was uploaded after l-g-t-m from brettw@chromium.org
Link to the patchset: https://codereview.chromium.org/1236543004/#ps120001
(title: "android_shared_library_extension -> android_product_extension (to match
GYP)")

[commit-bot: I haz the power, 2015-07-14 00:58:26]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1236543004/120001

[commit-bot: I haz the power, 2015-07-14 01:30:53]

Committed patchset #7 (id:120001)

[commit-bot: I haz the power, 2015-07-14 01:31:44]

Patchset 7 (id:??) landed as
https://crrev.com/a2daf08ffddf4549160f3925383b457a2eb03c7f
Cr-Commit-Position: refs/heads/master@{#338612}