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

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

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights
  * reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
@@ skipping 604 matching lines @@
 void PaintLayer::mapRectToPaintInvalidationBacking(
     const LayoutObject& layoutObject,
     const LayoutBoxModelObject& paintInvalidationContainer,
     LayoutRect& rect) {
   if (!paintInvalidationContainer.layer()->groupedMapping()) {
     layoutObject.mapToVisualRectInAncestorSpace(&paintInvalidationContainer,
                                                 rect);
     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,
                                               rect);
 
   mapRectInPaintInvalidationContainerToBacking(paintInvalidationContainer,
                                                rect);
 }
 
 void PaintLayer::dirtyVisibleContentStatus() {
@@ skipping 2626 matching lines @@
 }
 
 void showLayerTree(const blink::LayoutObject* layoutObject) {
   if (!layoutObject) {
     fprintf(stderr, "Cannot showLayerTree. Root is (nil)\n");
     return;
   }
   showLayerTree(layoutObject->enclosingLayer());
 }
 #endif