needsPaintInvalidation() should not return true for selection.

third_party/WebKit/Source/core/layout/LayoutBox.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 172 matching lines @@
                                 const ComputedStyle& newStyle) {
   const ComputedStyle* oldStyle = style();
   if (oldStyle) {
     LayoutFlowThread* flowThread = flowThreadContainingBlock();
     if (flowThread && flowThread != this)
       flowThread->flowThreadDescendantStyleWillChange(this, diff, newStyle);
 
     // The background of the root element or the body element could propagate up
     // to the canvas. Just dirty the entire canvas when our style changes
     // substantially.
-    if ((diff.needsPaintInvalidation() || diff.needsLayout()) && node() &&
+    if ((diff.needsFullPaintInvalidation() || diff.needsLayout()) && node() &&
         (isHTMLHtmlElement(*node()) || isHTMLBodyElement(*node()))) {
       view()->setShouldDoFullPaintInvalidation();
 
       if (oldStyle->hasEntirelyFixedBackground() !=
           newStyle.hasEntirelyFixedBackground())
         view()->compositor()->setNeedsUpdateFixedBackground();
     }
 
     // When a layout hint happens and an object's position style changes, we
     // have to do a layout to dirty the layout tree using the old position
@@ skipping 72 matching lines @@
     // the dimension we want to preserve.
     ScrollOffset oldOffset = scrollableArea->getScrollOffset();
     if (oldOffset.width() || oldOffset.height()) {
       ScrollOffset newOffset = oldOffset.scaledBy(newStyle.effectiveZoom() /
                                                   oldStyle->effectiveZoom());
       scrollableArea->setScrollOffsetUnconditionally(newOffset);
     }
   }
 
   // Our opaqueness might have changed without triggering layout.
-  if (diff.needsPaintInvalidation()) {
+  if (diff.needsFullPaintInvalidation()) {
     LayoutObject* parentToInvalidate = parent();
     for (unsigned i = 0;
          i < backgroundObscurationTestMaxDepth && parentToInvalidate; ++i) {
       parentToInvalidate->invalidateBackgroundObscurationStatus();
       parentToInvalidate = parentToInvalidate->parent();
     }
   }
 
   if (isDocumentElement() || isBody()) {
     document().view()->recalculateScrollbarOverlayColorTheme(
@@ skipping 5433 matching lines @@
 
 void LayoutBox::MutableForPainting::
     savePreviousContentBoxSizeAndLayoutOverflowRect() {
   auto& rareData = layoutBox().ensureRareData();
   rareData.m_hasPreviousContentBoxSizeAndLayoutOverflowRect = true;
   rareData.m_previousContentBoxSize = layoutBox().contentBoxRect().size();
   rareData.m_previousLayoutOverflowRect = layoutBox().layoutOverflowRect();
 }
 
 }  // namespace blink