RTCCertificate and RTCPeerConnection.generateCertificate added to JavaScript

public/platform/Platform.h

Index: public/platform/Platform.h
diff --git a/public/platform/Platform.h b/public/platform/Platform.h
index 72ee4888c6b9ac8d58e5f7a057d1109912ecec44..5a788839ea974a0f59c478f672e10b11c9f009e2 100644
--- a/public/platform/Platform.h
+++ b/public/platform/Platform.h
@@ -95,6 +95,7 @@ class WebPrescientNetworking;
 class WebProcessMemoryDump;
 class WebPublicSuffixList;
 class WebPushProvider;
+class WebRTCCertificateGenerator;
 class WebRTCPeerConnectionHandler;
 class WebRTCPeerConnectionHandlerClient;
 class WebSandboxSupport;
@@ -628,6 +629,9 @@ public:
     virtual WebRTCPeerConnectionHandler* createRTCPeerConnectionHandler(WebRTCPeerConnectionHandlerClient*) { return nullptr; }
 
     // May return null if WebRTC functionality is not avaliable or out of resources.
+    virtual WebRTCCertificateGenerator* createRTCCertificateGenerator() { return nullptr; }
+
+    // May return null if WebRTC functionality is not avaliable or out of resources.
     virtual WebMediaStreamCenter* createMediaStreamCenter(WebMediaStreamCenterClient*) { return nullptr; }