This allows Settings to test against the latest framework changes.
Also replaced TestConfig with traditional robolectric.properties.
Bug: 73173204
Bug: 73892008
Test: make -j56 RunSettingsRoboTests
Change-Id: I3135b4fa5f095ba79b282a76f45dd9baa2584bc7
Move public static methods from DataUsageSummary to DataUsageBase.
Bug: 62349208
Test: make RunSettingsRoboTests -j40
Change-Id: I632f75f4c4f370fb225a9787267043fec20994e5