LayoutBox::mapContentsRectToVisibleRectInBorderBoxSpace()

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 0e7df4612e1a2ebb04b37b882be130054882c30e..4c2e953669ae71a7287d08a83cce11024da51b1b 100644
--- a/third_party/WebKit/Source/core/layout/LayoutObject.h
+++ b/third_party/WebKit/Source/core/layout/LayoutObject.h
@@ -1141,9 +1141,10 @@ public:
     // should use paintInvalidationRectInLocalSVGCoordinates() and map with SVG transforms instead.
     virtual LayoutRect localOverflowRectForPaintInvalidation() const;
 
-    // Given a rect in the object's coordinate space, compute a rect in the coordinate space of |ancestor|.  If
-    // intermediate containers have clipping or scrolling of any kind, it is applied; but overflow clipping is
-    // *not* applied for |ancestor| itself. The output rect is suitable for purposes such as paint invalidation.
+    // Given a rect in the object's coordinate space (i.e. border box space for LayoutBox), compute a rect in the
+    // physical coordinate space of |ancestor|. If intermediate containers (including ancestor itself) have clipping
+    // or scrolling of any kind, it is applied by the child before the rect is passed to container's
+    // |mapToVisibleRectInAncestorSpace()|. The output rect is suitable for purposes such as paint invalidation.
     //
     // If visibleRectFlags has the EdgeInclusive bit set, clipping operations will use
     // LayoutRect::inclusiveIntersect, and the return value of inclusiveIntersect will be propagated