Rename repaint to paintInvalidation for remaining methods.

Source/core/rendering/RenderSliderContainer.cpp

Index: Source/core/rendering/RenderSliderContainer.cpp
diff --git a/Source/core/rendering/RenderSliderContainer.cpp b/Source/core/rendering/RenderSliderContainer.cpp
index db6de918e26fa10d06b94267b55fbdb3f8f99504..a1945578c8b395ba05309d75ccbd1d295f9f52eb 100644
--- a/Source/core/rendering/RenderSliderContainer.cpp
+++ b/Source/core/rendering/RenderSliderContainer.cpp
@@ -142,7 +142,7 @@ void RenderSliderContainer::layout()
 
     // We need one-off invalidation code here because painting of the timeline element does not go through style.
     // Instead it has a custom implementation in C++ code.
-    // Therefore the style system cannot understand when it needs to be repainted.
+    // Therefore the style system cannot understand when it needs to be paint invalidated.
     setShouldDoFullPaintInvalidation(true);
 }