Add RTCPeerConnection RAPPOR metrics.

third_party/WebKit/Source/core/frame/HostsUsingFeatures.h

 // 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.
 
 #ifndef HostsUsingFeatures_h
 #define HostsUsingFeatures_h
 
 #include "core/CoreExport.h"
 #include "platform/heap/Handle.h"
 #include "platform/weborigin/KURL.h"
@@ skipping 20 matching lines @@
         EventPath,
         DeviceMotionInsecureHost,
         DeviceOrientationInsecureHost,
         FullscreenInsecureHost,
         GeolocationInsecureHost,
         GetUserMediaInsecureHost,
         GetUserMediaSecureHost,
         ElementAttachShadow,
         ApplicationCacheManifestSelectInsecureHost,
         ApplicationCacheAPIInsecureHost,
+        RTCPeerConnectionCreated,
+        RTCPeerConnectionStable,
+        RTCPeerConnectionConnected,
 
         NumberOfFeatures // This must be the last item.
     };
 
     static void countAnyWorld(Document&, Feature);
     static void countMainWorldOnly(const ScriptState*, Document&, Feature);
     static void countHostOrIsolatedWorldHumanReadableName(const ScriptState*, EventTarget&, Feature);
 
     void documentDetached(Document&);
     void updateMeasurementsAndClear();
@@ skipping 27 matching lines @@
     void recordNamesToRappor();
     void recordETLDPlus1ToRappor();
 
     Vector<std::pair<KURL, HostsUsingFeatures::Value>, 1> m_urlAndValues;
     HashMap<String, HostsUsingFeatures::Value> m_valueByName;
 };
 
 } // namespace blink
 
 #endif // HostsUsingFeatures_h