Deprecate FLAGS_quic_reloadable_flag_enable_async_get_proof

net/quic/test_tools/crypto_test_utils.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/test_tools/crypto_test_utils.h"
 
 #include <memory>
 
 #include "crypto/openssl_util.h"
 #include "crypto/secure_hash.h"
@@ skipping 546 matching lines @@
     return string();
   }
   return it->second;
 }
 
 uint64_t LeafCertHashForTesting() {
   QuicReferenceCountedPointer<ProofSource::Chain> chain;
   QuicSocketAddress server_address;
   QuicCryptoProof proof;
   std::unique_ptr<ProofSource> proof_source(ProofSourceForTesting());
-  if (!proof_source->GetProof(server_address, "", "",
-                              AllSupportedVersions().front(), "",
-                              QuicTagVector(), &chain, &proof) ||
-      chain->certs.empty()) {
+
+  class Callback : public ProofSource::Callback {
+   public:
+    Callback(bool* ok, QuicReferenceCountedPointer<ProofSource::Chain>* chain)
+        : ok_(ok), chain_(chain) {}
+
+    void Run(bool ok,
+             const QuicReferenceCountedPointer<ProofSource::Chain>& chain,
+             const QuicCryptoProof& /* proof */,
+             std::unique_ptr<ProofSource::Details> /* details */) override {
+      *ok_ = ok;
+      *chain_ = chain;
+    }
+
+   private:
+    bool* ok_;
+    QuicReferenceCountedPointer<ProofSource::Chain>* chain_;
+  };
+
+  // Note: relies on the callback being invoked synchronously
+  bool ok = false;
+  proof_source->GetProof(
+      server_address, "", "", AllSupportedVersions().front(), "",
+      QuicTagVector(),
+      std::unique_ptr<ProofSource::Callback>(new Callback(&ok, &chain)));
+  if (!ok || chain->certs.empty()) {
     DCHECK(false) << "Proof generation failed";
     return 0;
   }
 
   return QuicUtils::FNV1a_64_Hash(chain->certs.at(0));
 }
 
 class MockCommonCertSets : public CommonCertSets {
  public:
   MockCommonCertSets(StringPiece cert, uint64_t hash, uint32_t index)
@@ skipping 415 matching lines @@
   FullChloGenerator generator(crypto_config, server_addr, client_addr, clock,
                               proof, compressed_certs_cache, out);
   crypto_config->ValidateClientHello(
       inchoate_chlo, client_addr.host(), server_addr, version, clock, proof,
       generator.GetValidateClientHelloCallback());
 }
 
 }  // namespace crypto_test_utils
 }  // namespace test
 }  // namespace net