Fix accidental tab in base.mk.

Change-Id: I384abccaed4f1be0fa5b73714e2c080526cdc787

Revert "Fix accidental tab in base.mk."

This reverts commit 392e863404041646f3a4a5db8b4e0996fe7c9fdd.

Revert "Replace Music with Eleven."

This reverts commit 3a4e923b470ed4bd829c4873b7129450fc303710.