Revert of Allow the DTLS fingerprint verification to occur after the handshake.

webrtc/base/sslstreamadapter.h

Index: webrtc/base/sslstreamadapter.h
diff --git a/webrtc/base/sslstreamadapter.h b/webrtc/base/sslstreamadapter.h
index 8bee4f90f2139fd9d6c2862924c54079ce3501f0..a7ef23fc79935aeefef6773cc8d0fc8725152a94 100644
--- a/webrtc/base/sslstreamadapter.h
+++ b/webrtc/base/sslstreamadapter.h
@@ -105,12 +105,6 @@
   SSL_PROTOCOL_TLS_12,
   SSL_PROTOCOL_DTLS_10 = SSL_PROTOCOL_TLS_11,
   SSL_PROTOCOL_DTLS_12 = SSL_PROTOCOL_TLS_12,
-};
-enum class SSLPeerCertificateDigestError {
-  NONE,
-  UNKNOWN_ALGORITHM,
-  INVALID_LENGTH,
-  VERIFICATION_FAILED,
 };
 
 // Errors for Read -- in the high range so no conflict with OpenSSL.
@@ -179,10 +173,9 @@
   // certificate is assumed to have been obtained through some other secure
   // channel (such as the signaling channel). This must specify the terminal
   // certificate, not just a CA. SSLStream makes a copy of the digest value.
-  virtual SSLPeerCertificateDigestError SetPeerCertificateDigest(
-      const std::string& digest_alg,
-      const unsigned char* digest_val,
-      size_t digest_len) = 0;
+  virtual bool SetPeerCertificateDigest(const std::string& digest_alg,
+                                        const unsigned char* digest_val,
+                                        size_t digest_len) = 0;
 
   // Retrieves the peer's X.509 certificate, if a connection has been
   // established. It returns the transmitted over SSL, including the entire
@@ -218,12 +211,6 @@
   virtual bool SetDtlsSrtpCryptoSuites(const std::vector<int>& crypto_suites);
   virtual bool GetDtlsSrtpCryptoSuite(int* crypto_suite);
 
-  // Returns true if a TLS connection has been established.
-  // The only difference between this and "GetState() == SE_OPEN" is that if
-  // the peer certificate digest hasn't been verified, the state will still be
-  // SS_OPENING but IsTlsConnected should return true.
-  virtual bool IsTlsConnected() = 0;
-
   // Capabilities testing
   static bool HaveDtls();
   static bool HaveDtlsSrtp();