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

webkit/glue/webframe.h

 // Copyright (c) 2006-2009 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 WEBKIT_GLUE_WEBFRAME_H_
 #define WEBKIT_GLUE_WEBFRAME_H_
 
 #include <vector>
 
 #include "base/scoped_ptr.h"
@@ skipping 100 matching lines @@
       bool replace = false) = 0;
 
   // This method is short-hand for calling LoadData, where mime_type is
   // "text/html" and text_encoding is "UTF-8".
   virtual void LoadHTMLString(
       const WebKit::WebData& html,
       const WebKit::WebURL& base_url,
       const WebKit::WebURL& unreachable_url = WebKit::WebURL(),
       bool replace = false) = 0;
 
-  // Asks the WebFrame to try and download the alternate error page.  We notify
-  // the WebViewDelegate of the results so it can decide whether or not to show
-  // something to the user (e.g., a local error page or the alternate error
-  // page).
-  virtual void LoadAlternateHTMLErrorPage(const WebKit::WebURLRequest& request,
-                                          const WebKit::WebURLError& error,
-                                          const GURL& error_page_url,
-                                          bool replace,
-                                          const GURL& fake_url) = 0;
-
   // Called to associate the WebURLRequest with this frame.  The request will
   // be modified to inherit parameters that allow it to be loaded.  This method
   // ends up triggering WebViewDelegate::WillSendRequest.
   virtual void DispatchWillSendRequest(WebKit::WebURLRequest* request) = 0;
 
   // Executes JavaScript in the web frame.
   virtual void ExecuteScript(const WebKit::WebScriptSource& source) = 0;
 
   // Executes JavaScript in a new context associated with the web frame. The
   // script gets its own global scope and its own prototypes for intrinsic
@@ skipping 65 matching lines @@
   // above) and the provisional data source will be NULL.
   virtual WebKit::WebDataSource* GetProvisionalDataSource() const = 0;
 
   //
   //  @method stopLoading
   //  @discussion Stop any pending loads on the frame's data source,
   //  and its children.
   //  - (void)stopLoading;
   virtual void StopLoading() = 0;
 
+  // Returns true if this frame is loading its main resource or a subresource.
+  virtual bool IsLoading() const = 0;
+
   // Returns the frame that opened this frame, or NULL if this window has no
   // opener.
   virtual WebFrame* GetOpener() const = 0;
 
   // Returns the frame containing this frame, or NULL of this is a top level
   // frame with no parent.
   virtual WebFrame* GetParent() const = 0;
 
   // Returns the top-most frame in the frame hierarchy containing this frame.
   virtual WebFrame* GetTop() const = 0;
@@ skipping 198 matching lines @@
   virtual int PendingFrameUnloadEventCount() const = 0;
 
  protected:
   virtual ~WebFrame() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebFrame);
 };
 
 #endif  // WEBKIT_GLUE_WEBFRAME_H_