Add support for multiple text decorations with same line positioning

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/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 2794 matching lines @@
         if (root->type() == ShadowRootType::UserAgent) {
             if (Element* shadowHost = node()->shadowHost()) {
                 return shadowHost->layoutObject()->getUncachedPseudoStyle(PseudoStyleRequest(SELECTION));
             }
         }
     }
 
     return getUncachedPseudoStyle(PseudoStyleRequest(SELECTION));
 }
 
-void LayoutObject::getTextDecorations(unsigned decorations, AppliedTextDecoration& underline, AppliedTextDecoration& overline, AppliedTextDecoration& linethrough, bool quirksMode, bool firstlineStyle)
-{
-    LayoutObject* curr = this;
-    const ComputedStyle* styleToUse = nullptr;
-    unsigned currDecs = TextDecorationNone;
-    Color resultColor;
-    TextDecorationStyle resultStyle;
-    do {
-        styleToUse = curr->style(firstlineStyle);
-        currDecs = styleToUse->textDecoration();
-        currDecs &= decorations;
-        resultColor = styleToUse->visitedDependentColor(CSSPropertyTextDecorationColor);
-        resultStyle = styleToUse->textDecorationStyle();
-        // Parameter 'decorations' is cast as an int to enable the bitwise operations below.
-        if (currDecs) {
-            if (currDecs & TextDecorationUnderline) {
-                decorations &= ~TextDecorationUnderline;
-                underline.color = resultColor;
-                underline.style = resultStyle;
-            }
-            if (currDecs & TextDecorationOverline) {
-                decorations &= ~TextDecorationOverline;
-                overline.color = resultColor;
-                overline.style = resultStyle;
-            }
-            if (currDecs & TextDecorationLineThrough) {
-                decorations &= ~TextDecorationLineThrough;
-                linethrough.color = resultColor;
-                linethrough.style = resultStyle;
-            }
-        }
-        if (curr->isRubyText())
-            return;
-        curr = curr->parent();
-        if (curr && curr->isAnonymousBlock() && toLayoutBlock(curr)->continuation())
-            curr = toLayoutBlock(curr)->continuation();
-    } while (curr && decorations && (!quirksMode || !curr->node() || (!isHTMLAnchorElement(*curr->node()) && !isHTMLFontElement(*curr->node()))));
-
-    // If we bailed out, use the element we bailed out at (typically a <font> or <a> element).
-    if (decorations && curr) {
-        styleToUse = curr->style(firstlineStyle);
-        resultColor = styleToUse->visitedDependentColor(CSSPropertyTextDecorationColor);
-        if (decorations & TextDecorationUnderline) {
-            underline.color = resultColor;
-            underline.style = resultStyle;
-        }
-        if (decorations & TextDecorationOverline) {
-            overline.color = resultColor;
-            overline.style = resultStyle;
-        }
-        if (decorations & TextDecorationLineThrough) {
-            linethrough.color = resultColor;
-            linethrough.style = resultStyle;
-        }
-    }
-}
-
 void LayoutObject::addAnnotatedRegions(Vector<AnnotatedRegionValue>& regions)
 {
     // Convert the style regions to absolute coordinates.
     if (style()->visibility() != VISIBLE || !isBox())
         return;
 
     if (style()->getDraggableRegionMode() == DraggableRegionNone)
         return;
 
     LayoutBox* box = toLayoutBox(this);
@@ skipping 511 matching lines @@
         const blink::LayoutObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);
     } else {
         fprintf(stderr, "Cannot showLayoutTree. Root is (nil)\n");
     }
 }
 
 #endif