Rename and DPM.isDefaultInputMethodSetByOwner()

DPM.isDefaultInputMethodSetByOwner() was a misnomer and
isCurrentInputMethodSetByOwner() is a more accurate name.

Bug: 32692748
Test: cts-tradefed run cts-dev --module CtsDevicePolicyManagerTestCases

Change-Id: I68faeba2eb7b57a8d913182b6dc6776326152505
2 files changed