roll: third_party/pigweed pw_rpc: Add callback writes to raw RPC call objects
This adds a new API to pw_rpc's RawServerReaderWriter and
RawClientReaderWriter which allows users to directly serialize their
RPC payloads to the RPC system's encoding buffer instead of a requiring
a copy from an externally-managed buffer.
This type of direct encoding buffer access is already possible through
the pwpb and nanopb RPC APIs through the use of callback members in
their generated structs. Enabling it in raw_rpc provides better parity
with these other protobuf libraries.
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/239353
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Original-Revision: 8e2fc6cfe825631416043a972cdd93875562a4fd
Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 02a68bb680ebdd..8e2fc6cfe82563
Roller-URL: https://ci.chromium.org/b/8735070310308502673
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ia25027a16c958147bc2620fecfa28fbb6ce92e09
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/239893
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 02a68bb..8e2fc6c 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 02a68bb680ebddeba8f0ad6cbbc6bb81d7568759
+Subproject commit 8e2fc6cfe825631416043a972cdd93875562a4fd
