Redraw media volume slider when it is moving

third_party/WebKit/Source/core/layout/LayoutObject.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1620 matching lines @@
   virtual void clearPreviousVisualRects();
 
   const LayoutPoint& paintOffset() const { return m_paintOffset; }
 
   PaintInvalidationReason fullPaintInvalidationReason() const {
     return m_bitfields.fullPaintInvalidationReason();
   }
   bool shouldDoFullPaintInvalidation() const {
     return m_bitfields.fullPaintInvalidationReason() != PaintInvalidationNone;
   }
-  void setShouldDoFullPaintInvalidation(
+  virtual void setShouldDoFullPaintInvalidation(

[mlamouri (slow - plz ping), 2017/03/31 11:20:16]

Instead of overriding this method, can you look at
`shouldDoFullPaintInvalidation()` or a similar public accessor?

[sabbakumov, 2017/04/03 04:12:45]

I think that we need to test the interaction between modules, not the module
state in this case. So, it's polymorphic here.

       PaintInvalidationReason = PaintInvalidationFull);
   void setShouldDoFullPaintInvalidationWithoutGeometryChange(
       PaintInvalidationReason = PaintInvalidationFull);
   void clearShouldDoFullPaintInvalidation() {
     m_bitfields.setFullPaintInvalidationReason(PaintInvalidationNone);
   }
 
   void clearPaintInvalidationFlags();
 
   bool mayNeedPaintInvalidation() const {
@@ skipping 1129 matching lines @@
 CORE_EXPORT void showLineTree(const blink::LayoutObject*);
 CORE_EXPORT void showLayoutTree(const blink::LayoutObject* object1);
 // We don't make object2 an optional parameter so that showLayoutTree
 // can be called from gdb easily.
 CORE_EXPORT void showLayoutTree(const blink::LayoutObject* object1,
                                 const blink::LayoutObject* object2);
 
 #endif
 
 #endif  // LayoutObject_h