Move alternate error page loading out of WebFrame....

chrome/renderer/render_view.h

 // Copyright (c) 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 CHROME_RENDERER_RENDER_VIEW_H_
 #define CHROME_RENDERER_RENDER_VIEW_H_
 
 #include <string>
 #include <queue>
 #include <vector>
@@ skipping 591 matching lines @@
   // information to the browser process.
   void BindDOMAutomationController(WebFrame* webframe);
 
   // Creates DevToolsClient and sets up JavaScript bindings for developer tools
   // UI that is going to be hosted by this RenderView.
   void CreateDevToolsClient();
 
   // Locates a sub frame with given xpath
   WebFrame* GetChildFrame(const std::wstring& frame_xpath) const;
 
-  std::string GetAltHTMLForTemplate(const DictionaryValue& error_strings,
-                                    int template_resource_id) const;
+  // Alternate error page helpers.
+  bool MaybeLoadAlternateErrorPage(
+      WebFrame* frame, const WebKit::WebURLError& error, bool replace);
+  std::string GetAltHTMLForTemplate(
+      const DictionaryValue& error_strings, int template_resource_id) const;
+  void AltErrorPageFinished(
+      WebFrame* frame, const GURL& unreachable_url, const std::string& html);
 
   virtual void DidAddHistoryItem();
 
   // Decodes a data: URL image or returns an empty image in case of failure.
   SkBitmap ImageFromDataUrl(const GURL&) const;
 
   void DumpLoadHistograms() const;
 
   // Scan the given frame for password forms and send them up to the browser.
   void SendPasswordForms(WebFrame* frame);
@@ skipping 193 matching lines @@
 
   RendererPreferences renderer_preferences_;
 
   // page id for the last navigation sent to the browser.
   int32 last_top_level_navigation_page_id_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderView);
 };
 
 #endif  // CHROME_RENDERER_RENDER_VIEW_H_