needsPaintInvalidation() should not return true for selection.

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
  *               (http://www.torchmobile.com/)
@@ skipping 1511 matching lines @@
     }
   }
 
   // TODO(wangxianzhu): We may avoid subtree paint invalidation on CSS clip
   // change for SPv2.
   if (diff.cssClipChanged())
     diff.setNeedsPaintInvalidationSubtree();
 
   // Optimization: for decoration/color property changes, invalidation is only
   // needed if we have style or text affected by these properties.
-  if (diff.textDecorationOrColorChanged() && !diff.needsPaintInvalidation()) {
+  if (diff.textDecorationOrColorChanged() &&
+      !diff.needsFullPaintInvalidation()) {
     if (style()->hasBorder() || style()->hasOutline() ||
         style()->hasBackgroundRelatedColorReferencingCurrentColor() ||
         // Skip any text nodes that do not contain text boxes. Whitespace cannot
         // be skipped or we will miss invalidating decorations (e.g.,
         // underlines).
         (isText() && !isBR() && toLayoutText(this)->hasTextBoxes()) ||
         (isSVG() && style()->svgStyle().isFillColorCurrentColor()) ||
         (isSVG() && style()->svgStyle().isStrokeColorCurrentColor()) ||
         isListMarker())
       diff.setNeedsPaintInvalidationObject();
@@ skipping 35 matching lines @@
     return;
   }
 
   setStyle(std::move(pseudoStyle));
 }
 
 void LayoutObject::firstLineStyleDidChange(const ComputedStyle& oldStyle,
                                            const ComputedStyle& newStyle) {
   StyleDifference diff = oldStyle.visualInvalidationDiff(newStyle);
 
-  if (diff.needsPaintInvalidation() || diff.textDecorationOrColorChanged()) {
+  if (diff.needsFullPaintInvalidation() ||
+      diff.textDecorationOrColorChanged()) {
     // We need to invalidate all inline boxes in the first line, because they
     // need to be repainted with the new style, e.g. background, font style,
     // etc.
     LayoutBlockFlow* firstLineContainer = nullptr;
     if (behavesLikeBlockContainer()) {
       // This object is a LayoutBlock having PseudoIdFirstLine pseudo style
       // changed.
       firstLineContainer =
           toLayoutBlock(this)->nearestInnerBlockWithFirstLine();
     } else if (isLayoutInline()) {
@@ skipping 318 matching lines @@
   if (oldStyle && !areCursorsEqual(oldStyle, style())) {
     if (LocalFrame* frame = this->frame()) {
       // Cursor update scheduling is done by the local root, which is the main
       // frame if there are no RemoteFrame ancestors in the frame tree. Use of
       // localFrameRoot() is discouraged but will change when cursor update
       // scheduling is moved from EventHandler to PageEventHandler.
       frame->localFrameRoot()->eventHandler().scheduleCursorUpdate();
     }
   }
 
-  if (diff.needsPaintInvalidation() && oldStyle) {
+  if (diff.needsFullPaintInvalidation() && oldStyle) {
     if (resolveColor(*oldStyle, CSSPropertyBackgroundColor) !=
             resolveColor(CSSPropertyBackgroundColor) ||
         oldStyle->backgroundLayers() != styleRef().backgroundLayers())
       setBackgroundChangedSinceLastPaintInvalidation();
   }
 }
 
 void LayoutObject::propagateStyleToAnonymousChildren() {
   // FIXME: We could save this call when the change only affected non-inherited
   // properties.
@@ skipping 1614 matching lines @@
     const blink::LayoutObject* root = object1;
     while (root->parent())
       root = root->parent();
     root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);
   } else {
     WTFLogAlways("%s", "Cannot showLayoutTree. Root is (nil)");
   }
 }
 
 #endif