Enable the clang style plugin in primary p2p/ target

Bug: webrtc:163
Change-Id: I318982ee549fe71cd48f74cdfad4173506742411
Reviewed-on: https://webrtc-review.googlesource.com/17040
Commit-Queue: Steve Anton <steveanton@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20509}
diff --git a/api/proxy.cc b/api/proxy.cc
new file mode 100644
index 0000000..c86bddf
--- /dev/null
+++ b/api/proxy.cc
@@ -0,0 +1,38 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "api/proxy.h"
+
+namespace webrtc {
+namespace internal {
+
+SynchronousMethodCall::SynchronousMethodCall(rtc::MessageHandler* proxy)
+    : e_(), proxy_(proxy) {}
+
+SynchronousMethodCall::~SynchronousMethodCall() = default;
+
+void SynchronousMethodCall::Invoke(const rtc::Location& posted_from,
+                                   rtc::Thread* t) {
+  if (t->IsCurrent()) {
+    proxy_->OnMessage(nullptr);
+  } else {
+    e_.reset(new rtc::Event(false, false));
+    t->Post(posted_from, this, 0);
+    e_->Wait(rtc::Event::kForever);
+  }
+}
+
+void SynchronousMethodCall::OnMessage(rtc::Message*) {
+  proxy_->OnMessage(nullptr);
+  e_->Set();
+}
+
+}  // namespace internal
+}  // namespace webrtc