RTCCertificate serialization.

webrtc/base/opensslidentity.h

Index: webrtc/base/opensslidentity.h
diff --git a/webrtc/base/opensslidentity.h b/webrtc/base/opensslidentity.h
index df495087e3574d5cd7a8d6051c484e7eb16dba58..b0401d59c3810901bff749acb6c5a1391e2b7241 100644
--- a/webrtc/base/opensslidentity.h
+++ b/webrtc/base/opensslidentity.h
@@ -39,6 +39,9 @@ class OpenSSLKeyPair {
   virtual OpenSSLKeyPair* GetReference();
 
   EVP_PKEY* pkey() const { return pkey_; }
+  std::string PrivateKeyToPemString() const;
+  bool operator==(const OpenSSLKeyPair& other) const;
+  bool operator!=(const OpenSSLKeyPair& other) const;
 
  private:
   void AddReference();
@@ -68,8 +71,9 @@ class OpenSSLCertificate : public SSLCertificate {
   X509* x509() const { return x509_; }
 
   std::string ToPEMString() const override;
-
   void ToDER(Buffer* der_buffer) const override;
+  bool operator==(const OpenSSLCertificate& other) const;
+  bool operator!=(const OpenSSLCertificate& other) const;
 
   // Compute the digest of the certificate given algorithm
   bool ComputeDigest(const std::string& algorithm,
@@ -115,6 +119,10 @@ class OpenSSLIdentity : public SSLIdentity {
   // Configure an SSL context object to use our key and certificate.
   bool ConfigureIdentity(SSL_CTX* ctx);
 
+  std::string PrivateKeyToPemString() const override;
+  bool operator==(const OpenSSLIdentity& other) const;
+  bool operator!=(const OpenSSLIdentity& other) const;
+
  private:
   OpenSSLIdentity(OpenSSLKeyPair* key_pair, OpenSSLCertificate* certificate);