Sliceable.isCopyableSlice() is not set to true for any controller, so this function is not used.
Usage is removed in Change: I81474aed994678c42d73cc59e169573880de1378
Bug: 227722942
Test: robotest & manual
Change-Id: I86e23aa8ad43f60b5017ff0a278e20e3f727706c
UserManager spy used instead of ShadowUserManager.
ArgumentCaptor used for ClipData rather than getting the primary clip.
Test: atest -c BuildNumberPreferenceControllerTest
Change-Id: Idd9e93371f1abda7bf9169ee86116fb7efb9ca09