Expose OpenSSL's key_exchange_info in the content API

content/browser/loader/resource_loader.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 "content/browser/loader/resource_loader.h"
 
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/metrics/histogram.h"
 #include "base/profiler/scoped_tracker.h"
@@ skipping 93 matching lines @@
   if (info->is_load_timing_enabled())
     request->GetLoadTimingInfo(&response->head.load_timing);
 
   if (request->ssl_info().cert.get()) {
     SSLStatus ssl_status;
     GetSSLStatusForRequest(request->url(), request->ssl_info(),
                            info->GetChildID(), &ssl_status);
     response->head.security_info = SerializeSecurityInfo(ssl_status);
   } else {
     // We should not have any SSL state.
-    DCHECK(!request->ssl_info().cert_status &&
-           request->ssl_info().security_bits == -1 &&
-           !request->ssl_info().connection_status);
+    DCHECK(!request->ssl_info().cert_status);
+    DCHECK_EQ(request->ssl_info().security_bits, -1);
+    DCHECK_EQ(request->ssl_info().key_exchange_info, 0);
+    DCHECK(!request->ssl_info().connection_status);
   }
 }
 
 }  // namespace
 
 ResourceLoader::ResourceLoader(scoped_ptr<net::URLRequest> request,
                                scoped_ptr<ResourceHandler> handler,
                                ResourceLoaderDelegate* delegate)
     : deferred_stage_(DEFERRED_NONE),
       request_(request.Pass()),
@@ skipping 569 matching lines @@
       case net::URLRequestStatus::FAILED:
         status = STATUS_UNDEFINED;
         break;
     }
 
     UMA_HISTOGRAM_ENUMERATION("Net.Prefetch.Pattern", status, STATUS_MAX);
   }
 }
 
 }  // namespace content