[automerger skipped] Introduce indirection layer on top Cronet ToT and Stable...

[automerger skipped] Introduce indirection layer on top Cronet ToT and Stable import channels am: eb929f85 -s ours am: ba7a76f3 -s ours

am skip reason: Merged-In Icc3afb518264b463662b5a085e390bdfccff6e53 with SHA-1 78b8643a is already in history

Original change: https://android-review.googlesource.com/c/platform/build/+/3503473



Change-Id: I47e01227d94d3a3721c378215ca24054dc3e02c0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>