*** NOT FOR LANDING *** Text nodes should only inherit inheritable properties.

Source/core/dom/LayoutTreeBuilder.cpp

 /*
  * 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, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 130 matching lines @@
         if (!newLayoutObject)
             return;
     }
 
     // Note: Adding newLayoutObject instead of layoutObject(). layoutObject() may be a child of newLayoutObject.
     parentLayoutObject->addChild(newLayoutObject, nextLayoutObject);
 }
 
 void LayoutTreeBuilderForText::createLayoutObject()
 {
-    ComputedStyle& style = m_layoutObjectParent->mutableStyleRef();
+    const ComputedStyle& parentStyle = m_layoutObjectParent->styleRef();
+    RefPtr<ComputedStyle> style = ComputedStyle::createWithInheritableProperties(parentStyle);

[leviw_travelin_and_unemployed, 2015/05/29 17:44:52]

Have you ran the perf tests? I wonder if this allocation will matter.

 
-    ASSERT(m_node->textLayoutObjectIsNeeded(style, *m_layoutObjectParent));
+    ASSERT(m_node->textLayoutObjectIsNeeded(*style, *m_layoutObjectParent));
 
-    LayoutText* newLayoutObject = m_node->createTextLayoutObject(style);
-    if (!m_layoutObjectParent->isChildAllowed(newLayoutObject, style)) {
+    LayoutText* newLayoutObject = m_node->createTextLayoutObject(parentStyle);
+    if (!m_layoutObjectParent->isChildAllowed(newLayoutObject, *style)) {
         newLayoutObject->destroy();
         return;
     }
 
     // Make sure the LayoutObject already knows it is going to be added to a LayoutFlowThread before we set the style
     // for the first time. Otherwise code using inLayoutFlowThread() in the styleWillChange and styleDidChange will fail.
     newLayoutObject->setIsInsideFlowThread(m_layoutObjectParent->isInsideFlowThread());
 
     LayoutObject* nextLayoutObject = this->nextLayoutObject();
     m_node->setLayoutObject(newLayoutObject);
-    // Parent takes care of the animations, no need to call setAnimatableStyle.
-    newLayoutObject->setStyle(&style);
+    newLayoutObject->setStyle(style);
     m_layoutObjectParent->addChild(newLayoutObject, nextLayoutObject);
 }
 
 }