Revert 283813 "Switch to BoringSSL."

trunk/src/net/quic/crypto/aead_base_decrypter_openssl.cc

Index: trunk/src/net/quic/crypto/aead_base_decrypter_openssl.cc
===================================================================
--- trunk/src/net/quic/crypto/aead_base_decrypter_openssl.cc	(revision 283844)
+++ trunk/src/net/quic/crypto/aead_base_decrypter_openssl.cc	(working copy)
@@ -86,12 +86,14 @@
     return false;
   }
 
-  if (!EVP_AEAD_CTX_open(
-      ctx_.get(), output, output_length, ciphertext.size(),
+  ssize_t len = EVP_AEAD_CTX_open(
+      ctx_.get(), output, ciphertext.size(),
       reinterpret_cast<const uint8_t*>(nonce.data()), nonce.size(),
       reinterpret_cast<const uint8_t*>(ciphertext.data()), ciphertext.size(),
       reinterpret_cast<const uint8_t*>(associated_data.data()),
-      associated_data.size())) {
+      associated_data.size());
+
+  if (len < 0) {
     // Because QuicFramer does trial decryption, decryption errors are expected
     // when encryption level changes. So we don't log decryption errors.
     ClearOpenSslErrors();
@@ -98,6 +100,7 @@
     return false;
   }
 
+  *output_length = len;
   return true;
 }