Move continuation getter and setter down to LayoutBlockFlow.

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/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 2123 matching lines @@
         if (!child->isAnonymous() || child->style()->styleType() != PseudoIdNone)
             continue;
 
         if (child->anonymousHasStylePropagationOverride())
             continue;
 
         RefPtr<ComputedStyle> newStyle = ComputedStyle::createAnonymousStyleWithDisplay(styleRef(), child->style()->display());
 
         // Preserve the position style of anonymous block continuations as they can have relative position when
         // they contain block descendants of relative positioned inlines.
-        if (child->isInFlowPositioned() && child->isLayoutBlock() && toLayoutBlock(child)->isAnonymousBlockContinuation())
+        if (child->isInFlowPositioned() && child->isLayoutBlockFlow() && toLayoutBlockFlow(child)->isAnonymousBlockContinuation())
             newStyle->setPosition(child->style()->position());
 
         updateAnonymousChildStyle(*child, *newStyle);
 
         child->setStyle(newStyle.release());
     }
 }
 
 void LayoutObject::setStyleWithWritingModeOfParent(PassRefPtr<ComputedStyle> style)
 {
@@ skipping 703 matching lines @@
 {
     // If the tree is destroyed, there is no need for a clean-up phase.
     if (documentBeingDestroyed()) {
         destroy();
         return;
     }
 
     LayoutObject* destroyRoot = this;
     for (LayoutObject* destroyRootParent = destroyRoot->parent(); destroyRootParent && destroyRootParent->isAnonymous(); destroyRoot = destroyRootParent, destroyRootParent = destroyRootParent->parent()) {
         // Anonymous block continuations are tracked and destroyed elsewhere (see the bottom of LayoutBlock::removeChild)
-        if (destroyRootParent->isLayoutBlock() && toLayoutBlock(destroyRootParent)->isAnonymousBlockContinuation())
+        if (destroyRootParent->isLayoutBlockFlow() && toLayoutBlockFlow(destroyRootParent)->isAnonymousBlockContinuation())
             break;
         // A flow thread is tracked by its containing block. Whether its children are removed or not is irrelevant.
         if (destroyRootParent->isLayoutFlowThread())
             break;
 
         if (destroyRootParent->slowFirstChild() != destroyRoot || destroyRootParent->slowLastChild() != destroyRoot)
             break; // Need to keep the anonymous parent, since it won't become empty by the removal of this layoutObject.
     }
 
     destroyRoot->destroy();
@@ skipping 257 matching lines @@
             }
             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();
+        if (curr && curr->isAnonymousBlock() && curr->isLayoutBlockFlow() && toLayoutBlockFlow(curr)->continuation())
+            curr = toLayoutBlockFlow(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;
         }
@@ skipping 542 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