Import abseil-cpp to third_party

Renamed abseil modules to make them webrtc specific.
Restricted visibility of abseil modules to webrtc packages.

Bug: 171836454
Test: Builds

Change-Id: Icf24c7e3093a77dd9a26e7ec78bd531eb1ad3dec

1 files changed, 30 insertions, 0 deletions

diff --git a/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler_force_weak_definition.cc b/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler_force_weak_definition.cc
new file mode 100644
index 0000000000..78b9d362ac
--- /dev/null
+++ b/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler_force_weak_definition.cc
@@ -0,0 +1,30 @@
+// Copyright 2018 The Abseil Authors.
+//
+// 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.
+
+#include "absl/container/internal/hashtablez_sampler.h"
+
+#include "absl/base/attributes.h"
+
+namespace absl {
+ABSL_NAMESPACE_BEGIN
+namespace container_internal {
+
+// See hashtablez_sampler.h for details.
+extern "C" ABSL_ATTRIBUTE_WEAK bool AbslContainerInternalSampleEverything() {
+  return false;
+}
+
+}  // namespace container_internal
+ABSL_NAMESPACE_END
+}  // namespace absl