GitLab

Right now the <select> dialogs use directly
R.layout.select_dialog_(multi|single)choice defined in the Android
framework. Adding an extra level of indirection to them through attrs
since other builds need to override these two layouts.

BUG=285270
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/23523025

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221396 0039d316-1c4b-4281-b951-d872f2087c98