Do not reset the content settings delegate's cookies when a network error occurred.

chrome/browser/tab_contents/tab_contents.h

 // Copyright (c) 2010 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 CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #define CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 869 matching lines @@
                                 const std::string& translated_lang,
                                 TranslateErrors::Type error_type);
   virtual void OnSetSuggestions(int32 page_id,
                                 const std::vector<std::string>& suggestions);
   virtual void OnInstantSupportDetermined(int32 page_id, bool result);
 
   // RenderViewHostDelegate::Resource implementation.
   virtual void DidStartProvisionalLoadForFrame(RenderViewHost* render_view_host,
                                                int64 frame_id,
                                                bool is_main_frame,
+                                               bool is_error_page,
                                                const GURL& url);
   virtual void DidStartReceivingResourceResponse(
       const ResourceRequestDetails& details);
   virtual void DidRedirectProvisionalLoad(int32 page_id,
                                           const GURL& source_url,
                                           const GURL& target_url);
   virtual void DidRedirectResource(
       const ResourceRedirectDetails& details);
   virtual void DidLoadResourceFromMemoryCache(
       const GURL& url,
@@ skipping 407 matching lines @@
   // Content restrictions, used to disable print/copy etc based on content's
   // (full-page plugins for now only) permissions.
   int content_restrictions_;
 
   // ---------------------------------------------------------------------------
 
   DISALLOW_COPY_AND_ASSIGN(TabContents);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_