Add policy to control valid UDP port range in WebRTC

chrome/browser/extensions/api/preference/preference_api.cc

 // Copyright (c) 2012 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 "chrome/browser/extensions/api/preference/preference_api.h"
 
 #include <stddef.h>
 
 #include <map>
 #include <utility>
@@ skipping 114 matching lines @@
 #if defined(ENABLE_WEBRTC)
     // webRTCMultipleRoutesEnabled and webRTCNonProxiedUdpEnabled have been
     // replaced by webRTCIPHandlingPolicy. Leaving it for backward
     // compatibility. TODO(guoweis): Remove this in M50.
     {"webRTCMultipleRoutesEnabled", prefs::kWebRTCMultipleRoutesEnabled,
      APIPermission::kPrivacy, APIPermission::kPrivacy},
     {"webRTCNonProxiedUdpEnabled", prefs::kWebRTCNonProxiedUdpEnabled,
      APIPermission::kPrivacy, APIPermission::kPrivacy},
     {"webRTCIPHandlingPolicy", prefs::kWebRTCIPHandlingPolicy,
      APIPermission::kPrivacy, APIPermission::kPrivacy},
+    {"webRTCUDPPortRange", prefs::kWebRTCUDPPortRange, APIPermission::kPrivacy,
+     APIPermission::kPrivacy},
 #endif
     // accessibilityFeatures.animationPolicy is available for
     // all platforms but the others from accessibilityFeatures
     // is only available for OS_CHROMEOS.
     {"animationPolicy", prefs::kAnimationPolicy,
      APIPermission::kAccessibilityFeaturesRead,
      APIPermission::kAccessibilityFeaturesModify},
 #if defined(OS_CHROMEOS)
     {"autoclick", prefs::kAccessibilityAutoclickEnabled,
      APIPermission::kAccessibilityFeaturesRead,
@@ skipping 648 matching lines @@
           pref_key, PreferenceFunction::PERMISSION_TYPE_WRITE, &browser_pref)) {
     return false;
   }
 
   PreferenceAPI::Get(GetProfile())
       ->RemoveExtensionControlledPref(extension_id(), browser_pref, scope);
   return true;
 }
 
 }  // namespace extensions