Redraw media volume slider when it is moving

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

Index: third_party/WebKit/Source/core/layout/LayoutObject.h
diff --git a/third_party/WebKit/Source/core/layout/LayoutObject.h b/third_party/WebKit/Source/core/layout/LayoutObject.h
index badb611965ef3f04785b6f3aacd3c32fadd9bb5c..1c26dac26521cb5af15cf06e513a231246482e02 100644
--- a/third_party/WebKit/Source/core/layout/LayoutObject.h
+++ b/third_party/WebKit/Source/core/layout/LayoutObject.h
@@ -1638,7 +1638,7 @@ class CORE_EXPORT LayoutObject : public ImageResourceObserver,
   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);