1afcea499d
This is a simple first version in the spirit of small, incremental CLs. It is fully functional but the following will come in later changes: * Split screen support * Potential animations * Alt-tab behavior * Relayout on orientation changes The new activity is only started when a specific system property is set. Test: Locally on Ryu device. Added tests for layout logic. Bug: 32101881 Change-Id: I550f6e7ea0de3937dbf80e5f0294676cfe567d47