Create a QUIC wrapper around scoped_refptr.

net/quic/core/crypto/proof_source.h

Index: net/quic/core/crypto/proof_source.h
diff --git a/net/quic/core/crypto/proof_source.h b/net/quic/core/crypto/proof_source.h
index 88bf2d391664a42d1cce945d1ba49b947909f627..8db52f7a66e682c43a20a11756855732018cd69e 100644
--- a/net/quic/core/crypto/proof_source.h
+++ b/net/quic/core/crypto/proof_source.h
@@ -9,10 +9,10 @@
 #include <string>
 #include <vector>
 
-#include "base/memory/ref_counted.h"
 #include "net/quic/core/crypto/quic_crypto_proof.h"
 #include "net/quic/core/quic_packets.h"
 #include "net/quic/platform/api/quic_export.h"
+#include "net/quic/platform/api/quic_reference_counted.h"
 #include "net/quic/platform/api/quic_socket_address.h"
 
 namespace net {
@@ -23,16 +23,15 @@ class QUIC_EXPORT_PRIVATE ProofSource {
  public:
   // Chain is a reference-counted wrapper for a std::vector of std::stringified
   // certificates.
-  struct QUIC_EXPORT_PRIVATE Chain : public base::RefCounted<Chain> {
+  struct QUIC_EXPORT_PRIVATE Chain : public QuicReferenceCounted {
     explicit Chain(const std::vector<std::string>& certs);
 
     const std::vector<std::string> certs;
 
-   private:
-    friend class base::RefCounted<Chain>;
-
-    virtual ~Chain();
+   protected:
+    ~Chain() override;
 
+   private:
     DISALLOW_COPY_AND_ASSIGN(Chain);
   };
 
@@ -65,7 +64,7 @@ class QUIC_EXPORT_PRIVATE ProofSource {
     // any, gathered during the operation of GetProof.  If no stats are
     // available, this will be nullptr.
     virtual void Run(bool ok,
-                     const scoped_refptr<Chain>& chain,
+                     const QuicReferenceCountedPointer<Chain>& chain,
                      const QuicCryptoProof& proof,
                      std::unique_ptr<Details> details) = 0;
 
@@ -109,7 +108,7 @@ class QUIC_EXPORT_PRIVATE ProofSource {
                         QuicVersion quic_version,
                         base::StringPiece chlo_hash,
                         const QuicTagVector& connection_options,
-                        scoped_refptr<Chain>* out_chain,
+                        QuicReferenceCountedPointer<Chain>* out_chain,
                         QuicCryptoProof* out_proof) = 0;
 
   // Async version of GetProof with identical semantics, except that the results