Remove unused WebFrameClient::hasPendingNavigation method.

third_party/WebKit/Source/core/loader/EmptyClients.h

 /*
  * Copyright (C) 2006 Eric Seidel (eric@webkit.org)
  * Copyright (C) 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 204 matching lines @@
     void dispatchDidReceiveTitle(const String&) override {}
     void dispatchDidChangeIcons(IconType) override {}
     void dispatchDidCommitLoad(HistoryItem*, HistoryCommitType) override {}
     void dispatchDidFailProvisionalLoad(const ResourceError&, HistoryCommitType) override {}
     void dispatchDidFailLoad(const ResourceError&, HistoryCommitType) override {}
     void dispatchDidFinishDocumentLoad() override {}
     void dispatchDidFinishLoad() override {}
     void dispatchDidChangeThemeColor() override {}
 
     NavigationPolicy decidePolicyForNavigation(const ResourceRequest&, DocumentLoader*, NavigationType, NavigationPolicy, bool, bool) override;
-    bool hasPendingNavigation() override;
 
     void dispatchWillSendSubmitEvent(HTMLFormElement*) override;
     void dispatchWillSubmitForm(HTMLFormElement*) override;
 
     void didStartLoading(LoadStartType) override {}
     void progressEstimateChanged(double) override {}
     void didStopLoading() override {}
 
     void loadURLExternally(const ResourceRequest&, NavigationPolicy, const String&, bool) override {}
 
@@ skipping 93 matching lines @@
     ~EmptyContextMenuClient() override {}
     bool showContextMenu(const ContextMenu*, bool) override { return false; }
     void clearContextMenu() override {}
 };
 
 CORE_EXPORT void fillWithEmptyClients(Page::PageClients&);
 
 } // namespace blink
 
 #endif // EmptyClients_h