Create separate WebRtc Platform.

PiperOrigin-RevId: 919258148

internal/platform/implementation/BUILD

@@ -87,6 +87,26 @@ cc_library(
     ],
 )
 
+cc_library(
+    name = "webrtc_platform",
+    hdrs = [
+        "webrtc_platform.h",
+    ],
+    compatible_with = ["//buildenv/target:non_prod"],
+    visibility = [
+        "//:__subpackages__",
+    ],
+    deps = [
+        ":comm",
+        "//connections/implementation/proto:offline_wire_formats_cc_proto",
+        "//internal/platform:base",
+        # "//third_party/webrtc/files/stable/webrtc/api:libjingle_peerconnection_api",
+        # "//third_party/webrtc/files/stable/webrtc/api:scoped_refptr",
+        "@com_google_absl//absl/functional:any_invocable",
+        "@com_google_absl//absl/strings:string_view",
+    ],
+)
+
 cc_library(
     name = "comm",
     hdrs = [

internal/platform/implementation/webrtc_platform.h

@@ -0,0 +1,31 @@
+// Copyright 2026 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.
+
+#ifndef PLATFORM_API_WEBRTC_PLATFORM_H_
+#define PLATFORM_API_WEBRTC_PLATFORM_H_
+
+#include <memory>
+
+#include "internal/platform/implementation/webrtc.h"
+
+namespace nearby::api {
+
+class WebRtcImplementationPlatform {
+ public:
+  static std::unique_ptr<WebRtcMedium> CreateWebRtcMedium();
+};
+
+}  // namespace nearby::api
+
+#endif  // PLATFORM_API_WEBRTC_PLATFORM_H_