Don't mark Text with ChildNeedsStyleRecalc.

Source/core/dom/Node.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004-2011, 2014 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 721 matching lines @@
 
         CustomElementFlag = 1 << 21,
         CustomElementUpgradedFlag = 1 << 22,
 
         HasNameOrIsEditingTextFlag = 1 << 23,
         HasWeakReferencesFlag = 1 << 24,
         V8CollectableDuringMinorGCFlag = 1 << 25,
         HasEventTargetDataFlag = 1 << 26,
         AlreadySpellCheckedFlag = 1 << 27,
 
-        DefaultNodeFlags = IsFinishedParsingChildrenFlag | ChildNeedsStyleRecalcFlag | NeedsReattachStyleChange
+        DefaultNodeFlags = IsFinishedParsingChildrenFlag | NeedsReattachStyleChange
     };
 
     // 3 bits remaining.
 
     bool getFlag(NodeFlags mask) const { return m_nodeFlags & mask; }
     void setFlag(bool f, NodeFlags mask) { m_nodeFlags = (m_nodeFlags & ~mask) | (-(int32_t)f & mask); }
     void setFlag(NodeFlags mask) { m_nodeFlags |= mask; }
     void clearFlag(NodeFlags mask) { m_nodeFlags &= ~mask; }
 
 protected:
     enum ConstructionType {
         CreateOther = DefaultNodeFlags,
         CreateText = DefaultNodeFlags | IsTextFlag,
-        CreateContainer = DefaultNodeFlags | IsContainerFlag,
+        CreateContainer = DefaultNodeFlags | ChildNeedsStyleRecalcFlag | IsContainerFlag,
         CreateElement = CreateContainer | IsElementFlag,
         CreateShadowRoot = CreateContainer | IsDocumentFragmentFlag | IsInShadowTreeFlag,
         CreateDocumentFragment = CreateContainer | IsDocumentFragmentFlag,
         CreateHTMLElement = CreateElement | IsHTMLFlag,
         CreateSVGElement = CreateElement | IsSVGFlag,
         CreateDocument = CreateContainer | InDocumentFlag,
         CreateInsertionPoint = CreateHTMLElement | IsInsertionPointFlag,
         CreateEditingText = CreateText | HasNameOrIsEditingTextFlag,
     };
 
@@ skipping 150 matching lines @@
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showNode(const blink::Node*);
 void showTree(const blink::Node*);
 void showNodePath(const blink::Node*);
 #endif
 
 #endif // Node_h