PlzNavigate: clear pending entry on aborted navigations

content/browser/frame_host/navigator_impl.h

 // Copyright 2013 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_BROWSER_FRAME_HOST_NAVIGATOR_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_IMPL_H_
 
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ skipping 119 matching lines @@
       const LoadCommittedDetails& details,
       const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
       SiteInstance* site_instance);
 
   // Called when a navigation has started in a main frame, to update the pending
   // NavigationEntry if the controller does not currently have a
   // browser-initiated one.
   void DidStartMainFrameNavigation(const GURL& url,
                                    SiteInstanceImpl* site_instance);
 
+  // Called when a navigation has failed to discard the pending entry in order
+  // to avoid url spoofs.
+  void DiscardPendingEntryOnFailureIfNeeded(NavigationHandleImpl* handle);
+
   // The NavigationController that will keep track of session history for all
   // RenderFrameHost objects using this NavigatorImpl.
   // TODO(nasko): Move ownership of the NavigationController from
   // WebContentsImpl to this class.
   NavigationControllerImpl* controller_;
 
   // Used to notify the object embedding this Navigator about navigation
   // events. Can be NULL in tests.
   NavigatorDelegate* delegate_;
 
   scoped_ptr<NavigatorImpl::NavigationMetricsData> navigation_data_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigatorImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_IMPL_H_