LTTF: Implement WebFrameLoaderClient::dispatchUnableToImplementPolicy() and so on

webkit/api/public/WebFrameClient.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 73 matching lines @@
 
         // Navigational queries ------------------------------------------------
 
         // The client may choose to alter the navigation policy.  Otherwise,
         // defaultPolicy should just be returned.
         virtual WebNavigationPolicy decidePolicyForNavigation(
             WebFrame*, const WebURLRequest&, WebNavigationType,
             const WebNode& originatingNode,
             WebNavigationPolicy defaultPolicy, bool isRedirect) = 0;
 
+        // Query if the specified request can be handled.
+        virtual bool canHandleRequest(const WebURLRequest& request) = 0;
+
+        // Called if canHandledRequest() returns false.
+        virtual WebURLError cannotShowURLError(
+            const WebURLRequest& request) = 0;
+
+        // Notify that a URL cannot be handled.
+        virtual void unableToImplementPolicyWithError(
+            WebFrame*, const WebURLError&) = 0;
 
         // Navigational notifications ------------------------------------------
 
         // A form submission is about to occur.
         virtual void willSubmitForm(WebFrame*, const WebForm&) = 0;
 
         // A client-side redirect will occur.  This may correspond to a <META
         // refresh> or some script activity.
         virtual void willPerformClientRedirect(
             WebFrame*, const WebURL& from, const WebURL& to,
@@ skipping 149 matching lines @@
         virtual void reportFindInPageSelection(
             int identifier, int activeMatchOrdinal, const WebRect& selection) = 0;
 
     protected:
         ~WebFrameClient() { }
     };
 
 } // namespace WebKit
 
 #endif