Merge "cronet: add CTS test for net.http.UrlRequest.cancel()" am: 6ee737dd15

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2412101

Change-Id: I9b1f926e933e44f7fc893dcc2b37de067184cb9a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>