EXO: Adjusted client_base for cast

Moved shell and aura shell checks to when not using fullscreen shell.
This is needed for cast to run fullscreen clients.

Bug: 896710
Test: Compiled client on ChromeOS.
Change-Id: Ie4c408d8266a0957ad9b57ea332a8e38171b2be9
Reviewed-on: https://chromium-review.googlesource.com/c/1331170
Reviewed-by: Daniele Castagna <dcastagna@chromium.org>
Reviewed-by: Daniel Nicoara <dnicoara@chromium.org>
Commit-Queue: Shawn Gallea <sagallea@google.com>
Cr-Commit-Position: refs/heads/master@{#607235}
1 file changed