Update CertVerifier to watch for the origin loop's destruction, so that

net/base/cert_verifier.h

 // Copyright (c) 2008-2009 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.
 
 #ifndef NET_BASE_CERT_VERIFIER_H_
 #define NET_BASE_CERT_VERIFIER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 44 matching lines @@
   // could not be completed synchronously, in which case the result code will
   // be passed to the callback when available.
   //
   int Verify(X509Certificate* cert, const std::string& hostname,
              int flags, CertVerifyResult* verify_result,
              CompletionCallback* callback);
 
  private:
   class Request;
   friend class Request;
+  struct RequestTraits;
   scoped_refptr<Request> request_;
   DISALLOW_COPY_AND_ASSIGN(CertVerifier);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_CERT_VERIFIER_H_