Merge "Add ".webp" to default compress extensions" am: bf6a120aaa am: f700df50c6 am: d97e7b04a2

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1430089

Change-Id: I9b775699bfa9c9d9c18393f0db1dadb353aa9492