-Add forceClose callback to finish panel -Add test cases Bug: 151396986 Test: make -j50 RunSettingsRoboTests Change-Id: Ic0ac2880a4ff412382816ccb41b4fbb60dbdf519
-Register media controller callback -Update panel header when medadata changes -Add test cases Bug: 151396986 Test: make -j50 RunSettingsRoboTests Change-Id: Id0b8f997899a96c0c94ca6bf099e624a9e87795b
-Rename PanelCustomizedButtonCallback to PanelContentCallback -Add onGroupChanged in PanelContentCallback -Add test cases Bug: 146813761 Test: make -j42 RunSettingsRoboTests Change-Id: I60888efbbd0fc2878467418e55c70887a9d3f405