Currently, there is a bug in the way we show the csd phishing interstitial.

chrome/browser/safe_browsing/client_side_detection_service.cc

 // Copyright (c) 2011 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 "chrome/browser/safe_browsing/client_side_detection_service.h"
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/file_util_proxy.h"
 #include "base/logging.h"
@@ skipping 170 matching lines @@
   if (model_file_ == base::kInvalidPlatformFileValue)
     return;
 
   IPC::PlatformFileForTransit file;
 #if defined(OS_POSIX)
   file = base::FileDescriptor(model_file_, false);
 #elif defined(OS_WIN)
   ::DuplicateHandle(::GetCurrentProcess(), model_file_, process->GetHandle(),
                     &file, 0, false, DUPLICATE_SAME_ACCESS);
 #endif
+  VLOG(2) << "Sending phishing model to renderer";
   process->Send(new SafeBrowsingMsg_SetPhishingModel(file));
 }
 
 void ClientSideDetectionService::SetModelStatus(ModelStatus status) {
   DCHECK_NE(READY_STATUS, model_status_);
   model_status_ = status;
 
   for (RenderProcessHost::iterator i(RenderProcessHost::AllHostsIterator());
        !i.IsAtEnd(); i.Advance()) {
     RenderProcessHost* process = i.GetCurrentValue();
@@ skipping 252 matching lines @@
     } else {
       DLOG(FATAL) << "Unable to parse IP address range: "
                   << kPrivateNetworks[i];
       return false;
     }
   }
   return true;
 }
 
 }  // namespace safe_browsing