OverscrollGlow for mainThread-{BLINK CHANGES}

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 21 matching lines @@
 #include "core/CoreExport.h"
 #include "core/editing/UndoStep.h"
 #include "core/loader/FrameLoaderClient.h"
 #include "core/page/ChromeClient.h"
 #include "core/page/ContextMenuClient.h"
 #include "core/page/DragClient.h"
 #include "core/page/EditorClient.h"
 #include "core/page/Page.h"
 #include "core/page/SpellCheckerClient.h"
 #include "platform/DragImage.h"
+#include "platform/geometry/FloatPoint.h"
 #include "platform/geometry/IntRect.h"
 #include "platform/heap/Handle.h"
 #include "platform/network/ResourceError.h"
 #include "platform/text/TextCheckerClient.h"
 #include "public/platform/WebFocusType.h"
 #include "public/platform/WebScreenInfo.h"
 #include "wtf/Forward.h"
 #include <v8.h>
 
 /*
@@ skipping 26 matching lines @@
     virtual void focus() override { }
 
     virtual bool canTakeFocus(WebFocusType) override { return false; }
     virtual void takeFocus(WebFocusType) override { }
 
     virtual void focusedNodeChanged(Node*, Node*) override { }
     virtual void focusedFrameChanged(LocalFrame*) override { }
     virtual Page* createWindow(LocalFrame*, const FrameLoadRequest&, const WindowFeatures&, NavigationPolicy, ShouldSendReferrer) override { return 0; }
     virtual void show(NavigationPolicy) override { }
 
+    virtual void didOverscroll(FloatSize&, FloatSize&, FloatPoint&, FloatSize&) override { }
+
     virtual void setToolbarsVisible(bool) override { }
     virtual bool toolbarsVisible() override { return false; }
 
     virtual void setStatusbarVisible(bool) override { }
     virtual bool statusbarVisible() override { return false; }
 
     virtual void setScrollbarsVisible(bool) override { }
     virtual bool scrollbarsVisible() override { return false; }
 
     virtual void setMenubarVisible(bool) override { }
@@ skipping 209 matching lines @@
     virtual ~EmptyDragClient() {}
     virtual DragDestinationAction actionMaskForDrag(DragData*) override { return DragDestinationActionNone; }
     virtual void startDrag(DragImage*, const IntPoint&, const IntPoint&, DataTransfer*, LocalFrame*, bool) override { }
 };
 
 CORE_EXPORT void fillWithEmptyClients(Page::PageClients&);
 
 }
 
 #endif // EmptyClients_h