1# This database migration does nothing. It works as a replacement for a reverted
2# migrate CL: https://chromium-review.googlesource.com/#/c/253760
3# For routine database migration revert, a new CL should be added to add
4# DOWN_SQL of the reverted migration as UP_SQL. However, in that CL's case,
5# DOWN_SQL is not available.
6# The dummy migration avoid the requirement to manually downgrade migrate_info
7# in each database.
8
9UP_SQL = """
10"""
11
12DOWN_SQL="""
13"""
14
15