Disable app install banners for custom tabs

Disable app install banners for custom tabs

One of the info bar that was seen as out of context for a custom tab
was the app install banners. This disables them for custom tabs.

Committed: https://crrev.com/3b25bb09fca5f8bb01fb1ae6a9529e3102e26e51
Cr-Commit-Position: refs/heads/master@{#334715}

[Yusuf, 2015-06-15 22:49:38]

yusufo@chromium.org changed reviewers:
+ dfalcantara@chromium.org

[gone, 2015-06-16 17:28:50]

lgtm

[Yusuf, 2015-06-16 18:23:48]

yusufo@chromium.org changed reviewers:
+ dtrainor@chromium.org

[David Trainor- moved to gerrit, 2015-06-16 21:10:22]

lgtm

[Yusuf, 2015-06-16 21:41:08]

The CQ bit was checked by yusufo@chromium.org

[commit-bot: I haz the power, 2015-06-16 21:42:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1190433007/1

[commit-bot: I haz the power, 2015-06-16 22:21:50]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-06-16 22:23:44]

Patchset 1 (id:??) landed as
https://crrev.com/3b25bb09fca5f8bb01fb1ae6a9529e3102e26e51
Cr-Commit-Position: refs/heads/master@{#334715}