Show the "cannot proceed" text only when appropriate.

content/public/browser/content_browser_client.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #pragma once
 
 #include <string>
 #include <utility>
@@ skipping 240 matching lines @@
 
   // Create and return a new quota permission context.
   virtual QuotaPermissionContext* CreateQuotaPermissionContext() = 0;
 
   // Open the given file in the desktop's default manner.
   virtual void OpenItem(const FilePath& path) = 0;
 
   // Show the given file in a file manager. If possible, select the file.
   virtual void ShowItemInFolder(const FilePath& path) = 0;
 
-  // Informs the embedder that a certificate error has occured.  If overridable
-  // is true, the user can ignore the error and continue.  If it's false, then
-  // the certificate error is severe and the user isn't allowed to proceed.  The
-  // embedder can call the callback asynchronously. If |cancel_request| is set
-  // to true, the request will be cancelled immediately and the callback won't
-  // be run.
+  // Informs the embedder that a certificate error has occured.  If
+  // |overridable| is true and if |strict_enforcement| is false, the user
+  // can ignore the error and continue. The embedder can call the callback
+  // asynchronously. If |cancel_request| is set to true, the request will be
+  // cancelled immediately and the callback won't be run.
   virtual void AllowCertificateError(
       int render_process_id,
       int render_view_id,
       int cert_error,
       const net::SSLInfo& ssl_info,
       const GURL& request_url,
       bool overridable,
+      bool strict_enforcement,
       const base::Callback<void(bool)>& callback,
       bool* cancel_request) = 0;
 
   // Selects a SSL client certificate and returns it to the |callback|. If no
   // certificate was selected NULL is returned to the |callback|.
   virtual void SelectClientCertificate(
       int render_process_id,
       int render_view_id,
       const net::HttpNetworkSession* network_session,
       net::SSLCertRequestInfo* cert_request_info,
@@ skipping 141 matching lines @@
   // This is called on a worker thread.
   virtual
       crypto::CryptoModuleBlockingPasswordDelegate* GetCryptoPasswordDelegate(
           const GURL& url) = 0;
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_