Release based on cl/313536507.

Signed-off-by: Alexey Polyudov <apolyudov@google.com>
Change-Id: I83ec7dee1a7ef6f4bdfd47482c94d03910525b7e

cpp/platform/impl/shared/BUILD

@@ -0,0 +1,59 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+cc_library(
+    name = "posix_lock",
+    srcs = [
+        "posix_lock.cc",
+    ],
+    hdrs = [
+        "posix_lock.h",
+    ],
+    visibility = [
+        "//googlemac/iPhone/Shared/Nearby/Connections:__subpackages__",
+        "//platform/impl:__subpackages__",
+    ],
+    deps = [
+        "//platform/api",
+    ],
+)
+
+cc_library(
+    name = "posix_condition_variable",
+    srcs = [
+        "posix_condition_variable.cc",
+    ],
+    hdrs = [
+        "posix_condition_variable.h",
+    ],
+    visibility = [
+        "//googlemac/iPhone/Shared/Nearby/Connections:__subpackages__",
+        "//platform/impl:__subpackages__",
+    ],
+    deps = [
+        ":posix_lock",
+        "//platform:types",
+        "//platform/api:condition_variable",
+    ],
+)
+
+cc_library(
+    name = "atomic_boolean",
+    hdrs = ["atomic_boolean_impl.h"],
+    visibility = [
+        "//googlemac/iPhone/Shared/Nearby/Connections:__subpackages__",
+        "//platform/impl:__subpackages__",
+    ],
+    deps = ["//platform/api"],
+)