Remove more Node API.

sky/engine/core/rendering/RenderObject.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 1554 matching lines @@
     showRenderObject(printedCharacters);
 
     for (const RenderObject* child = slowFirstChild(); child; child = child->nextSibling())
         child->showRenderTreeAndMark(markedObject1, markedLabel1, markedObject2, markedLabel2, depth + 1);
 }
 
 #endif // NDEBUG
 
 bool RenderObject::isSelectable() const
 {
-    return !isInert() && !(style()->userSelect() == SELECT_NONE && style()->userModify() == READ_ONLY);
+    return !(style()->userSelect() == SELECT_NONE && style()->userModify() == READ_ONLY);
 }
 
 Color RenderObject::selectionBackgroundColor() const
 {
     if (!isSelectable())
         return Color::transparent;
 
     return frame()->selection().isFocusedAndActive() ?
         RenderTheme::theme().activeSelectionBackgroundColor() :
         RenderTheme::theme().inactiveSelectionBackgroundColor();
@@ skipping 787 matching lines @@
 int RenderObject::previousOffsetForBackwardDeletion(int current) const
 {
     return current - 1;
 }
 
 int RenderObject::nextOffset(int current) const
 {
     return current + 1;
 }
 
-bool RenderObject::isInert() const
-{
-    const RenderObject* renderer = this;
-    while (!renderer->node())
-        renderer = renderer->parent();
-    return renderer->node()->isInert();
-}
-
 // touch-action applies to all elements with both width AND height properties.
 // According to the CSS Box Model Spec (http://dev.w3.org/csswg/css-box/#the-width-and-height-properties)
 // width applies to all elements but non-replaced inline elements, table rows, and row groups and
 // height applies to all elements but non-replaced inline elements, table columns, and column groups.
 bool RenderObject::supportsTouchAction() const
 {
     if (isInline() && !isReplaced())
         return false;
     return true;
 }
@@ skipping 171 matching lines @@
 {
     if (object1) {
         const blink::RenderObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showRenderTreeAndMark(object1, "*", object2, "-", 0);
     }
 }
 
 #endif