Rename "paint invalidation rect" etc. to "visual rect".

third_party/WebKit/Source/core/paint/PaintLayer.cpp

Index: third_party/WebKit/Source/core/paint/PaintLayer.cpp
diff --git a/third_party/WebKit/Source/core/paint/PaintLayer.cpp b/third_party/WebKit/Source/core/paint/PaintLayer.cpp
index 01825db216bfcbc45fe7b06d16d95043328839c5..db7b388e7e7f9f92f257c96daababcdb9f0a0196 100644
--- a/third_party/WebKit/Source/core/paint/PaintLayer.cpp
+++ b/third_party/WebKit/Source/core/paint/PaintLayer.cpp
@@ -622,11 +622,11 @@ void PaintLayer::mapRectToPaintInvalidationBacking(
     return;
   }
 
-  // This code adjusts the paint invalidation rectangle to be in the space of
-  // the transformed ancestor of the grouped (i.e. squashed) layer. This is
-  // because all layers that squash together need to issue paint invalidations
-  // w.r.t. a single container that is an ancestor of all of them, in order to
-  // properly take into account any local transforms etc.
+  // This code adjusts the visual rect to be in the space of the transformed
+  // ancestor of the grouped (i.e. squashed) layer. This is because all layers
+  // that squash together need to issue paint invalidations w.r.t. a single
+  // container that is an ancestor of all of them, in order to properly take
+  // into account any local transforms etc.
   // FIXME: remove this special-case code that works around the paint
   // invalidation code structure.
   layoutObject.mapToVisualRectInAncestorSpace(&paintInvalidationContainer,