Use FINAL macro for classes whose virtual destructor was removed

Source/core/platform/mediastream/RTCConfiguration.h

Index: Source/core/platform/mediastream/RTCConfiguration.h
diff --git a/Source/core/platform/mediastream/RTCConfiguration.h b/Source/core/platform/mediastream/RTCConfiguration.h
index 08cfd89ddc0b6b59c1f6c50dd5296cb526bbd14a..94e38c3b98aea9477d4bf609cfee7287ec4b7c20 100644
--- a/Source/core/platform/mediastream/RTCConfiguration.h
+++ b/Source/core/platform/mediastream/RTCConfiguration.h
@@ -39,7 +39,7 @@
 
 namespace WebCore {
 
-class RTCIceServer : public RefCounted<RTCIceServer> {
+class RTCIceServer FINAL : public RefCounted<RTCIceServer> {
 public:
     static PassRefPtr<RTCIceServer> create(const KURL& uri, const String& username, const String& credential)
     {
@@ -63,7 +63,7 @@ private:
     String m_credential;
 };
 
-class RTCConfiguration : public RefCounted<RTCConfiguration> {
+class RTCConfiguration FINAL : public RefCounted<RTCConfiguration> {
 public:
     static PassRefPtr<RTCConfiguration> create() { return adoptRef(new RTCConfiguration()); }