Check media permissions (mic/camera) before exposing local addresses to WebRTC.

content/renderer/p2p/network_manager_uma.cc

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/renderer/p2p/network_manager_uma.h"
+
+#include "base/metrics/histogram_macros.h"
+#include "base/time/time.h"
+
+namespace content {
+
+void ReportTimeToUpdateNetworkList(const base::TimeDelta& ticks) {
+  UMA_HISTOGRAM_TIMES("WebRTC.PeerConnection.TimeToNetworkUpdated", ticks);
+}
+
+void ReportIPPermissionStatus(IPPermissionStatus status) {
+  UMA_HISTOGRAM_ENUMERATION("WebRTC.PeerConnection.IPPermissionStatus", status,
+                            PERMISSION_MAX);
+}
+
+}  // namespace content