Prepare for replacing Proguard with R8

Bug: 69949394

Test: m -j && Run instrumentation tests from com.android.documentsui.tests
Test: m -j USE_R8=true && Run instrumentation tests from com.android.documentsui.tests

Change-Id: I66bf67b6a1d6b94783c5b385cbff77bc9870233c

parent 3483e2df

tests/common/com/android/documentsui/services/TestJob.java

+6 −0

Original line number	Diff line number	Diff line
		@@ -107,4 +107,10 @@ public class TestJob extends Job {
		service.getString(android.R.string.cancel),
		R.drawable.ic_cab_cancel);
		}

		// Add an empty finish method. R8 will remove the one in the base class as that
		// is never called in the app.
		@Override
		void finish() {
		}
		}