include a bugfix in third_party/protobuf

bazel/grpc_deps.bzl

@@ -169,11 +169,11 @@ def grpc_deps():
     if "com_google_protobuf" not in native.existing_rules():
         http_archive(
             name = "com_google_protobuf",
-            sha256 = "ac3773b90abe689dab5bf1d4a7611e9c3898cb438ddb610117c9014f4ff736b2",
-            strip_prefix = "protobuf-4a09d77a85a46c65d8b070e20dc88db904eb83af",
+            sha256 = "88f7b3d062759e9428394cd2b854722c7142de6d9ea1cc0514a251dcec91bc0b",
+            strip_prefix = "protobuf-19fb89416f3fdc2d6668f3738f444885575285bc",
             urls = [
-                "https://storage.googleapis.com/grpc-bazel-mirror/github.com/google/protobuf/archive/4a09d77a85a46c65d8b070e20dc88db904eb83af.tar.gz",
-                "https://github.com/google/protobuf/archive/4a09d77a85a46c65d8b070e20dc88db904eb83af.tar.gz",
+                "https://storage.googleapis.com/grpc-bazel-mirror/github.com/google/protobuf/archive/19fb89416f3fdc2d6668f3738f444885575285bc.tar.gz",
+                "https://github.com/google/protobuf/archive/19fb89416f3fdc2d6668f3738f444885575285bc.tar.gz",
             ],
         )
 

third_party/protobuf

@@ -1 +1 @@
-Subproject commit 4a09d77a85a46c65d8b070e20dc88db904eb83af
+Subproject commit 19fb89416f3fdc2d6668f3738f444885575285bc

tools/run_tests/sanity/check_submodules.sh

@@ -35,7 +35,7 @@ cat << EOF | awk '{ print $1 }' | sort > "$want_submodules"
  80ed4d0bbf65d57cc267dfc63bd2584557f11f9b third_party/googleapis (common-protos-1_3_1-915-g80ed4d0bb)
  c9ccac7cb7345901884aabf5d1a786cfa6e2f397 third_party/googletest (6e2f397)
  15ae750151ac9341e5945eb38f8982d59fb99201 third_party/libuv (v1.34.0)
- 4a09d77a85a46c65d8b070e20dc88db904eb83af third_party/protobuf (v3.7.0-rc.2-1277-gfde7cf735)
+ 19fb89416f3fdc2d6668f3738f444885575285bc third_party/protobuf (v3.7.0-rc.2-1277-gfde7cf735)
  e020f3aef8ae6cb59f384bfbaaed72e71e88ccd6 third_party/protoc-gen-validate (v0.4.1)
  aecba11114cf1fac5497aeb844b6966106de3eb6 third_party/re2 (heads/master)
  1f710aca26a95876e64973a6d2a927a9f4b20ca4 third_party/udpa (heads/master)