Merge "Fix a potential thread safety issue in VectorDrawable" into oc-mr1-dev am: 61cf6455 am: 2e440eb0 am: 92ed8250 am: 454c79f7 am: 9ed0a054 am: babf7fab am: f1d8c72d am: e6a34680 am: f64bee70

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14880620

Change-Id: I6d65ac3996fef9a359ec8266076aed23e311891f