Add default visibility to Python build file am: ad4ad2e631 am: 5b56bebacf
Add default visibility to Python build file am: ad4ad2e631 am: 5b56bebacf

Original change: https://android-review.googlesource.com/c/platform/external/perfetto/+/1945470

Change-Id: I2b0f432de2549610e9511dd718921dbe761c1869

google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto