Merge "Fix a potential thread safety issue in VectorDrawable" into qt-dev am:...

Merge "Fix a potential thread safety issue in VectorDrawable" into qt-dev am: 547df6be am: 419bd64b am: 6b905ded am: c13511c4 am: 3a190e00 am: d2c1a02b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14880618

Change-Id: I4b96a1438c0a9046240ad6fa374f05fe8db3d242