Remove unused WebFrameClient::hasPendingNavigation method.

third_party/WebKit/public/web/WebFrameClient.h

 /*
  * Copyright (C) 2011, 2012 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 254 matching lines @@
 
     virtual WebNavigationPolicy decidePolicyForNavigation(const NavigationPolicyInfo& info)
     {
         return info.defaultPolicy;
     }
 
     // During a history navigation, we may choose to load new subframes from history as well.
     // This returns such a history item if appropriate.
     virtual WebHistoryItem historyItemForNewChildFrame() { return WebHistoryItem(); }
 
-    // Whether the client is handling a navigation request.
-    virtual bool hasPendingNavigation() { return false; }
-
     // Navigational notifications ------------------------------------------
 
     // These notifications bracket any loading that occurs in the WebFrame.
     virtual void didStartLoading(bool toDifferentDocument) { }
     virtual void didStopLoading() { }
 
     // Notification that some progress was made loading the current frame.
     // loadProgress is a value between 0 (nothing loaded) and 1.0 (frame fully
     // loaded).
     virtual void didChangeLoadProgress(double loadProgress) { }
@@ skipping 439 matching lines @@
         return WebPageVisibilityStateVisible;
     }
 
 protected:
     virtual ~WebFrameClient() { }
 };
 
 } // namespace blink
 
 #endif