Bug 520846 - Use ArrayContentProvider.getInstance() where possible

As ArrayContentProvider is stateless, re-using the global instance
avoids a few allocations.

Change-Id: Ia378195c2c90e35badcf6e2c1938a93877a442e6
Signed-off-by: Andreas Sewe <andreas.sewe@codetrails.com>
7 files changed