Implement an openssl version of a QUIC ProofSource.

net/quic/crypto/proof_source_chromium_nss.cc

Index: net/quic/crypto/proof_source_chromium_nss.cc
diff --git a/net/quic/crypto/proof_source_chromium.cc b/net/quic/crypto/proof_source_chromium_nss.cc
similarity index 73%
rename from net/quic/crypto/proof_source_chromium.cc
rename to net/quic/crypto/proof_source_chromium_nss.cc
index fcca88bcf0fdc5e539a923b3afab9bdf01d70784..f73a6ac0a42c352f9ecc5811084766b0266fc7b0 100644
--- a/net/quic/crypto/proof_source_chromium.cc
+++ b/net/quic/crypto/proof_source_chromium_nss.cc
@@ -9,7 +9,13 @@ using std::vector;
 
 namespace net {
 
-ProofSourceChromium::ProofSourceChromium() {
+ProofSourceChromium::ProofSourceChromium() {}
+
+ProofSourceChromium::~ProofSourceChromium() {}
+
+bool ProofSourceChromium::Initialize(const base::FilePath& cert_path,
+                                     const base::FilePath& key_path) {
+  return false;
 }
 
 bool ProofSourceChromium::GetProof(const IPAddressNumber& server_ip,