[CSS] -webkit-var must be case sensitive according to specs

Source/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 1629 matching lines @@
     for (const RenderObject* child = firstChild(); child; child = child->nextSibling())
         child->showRenderTreeAndMark(markedObject1, markedLabel1, markedObject2, markedLabel2, depth + 1);
 }
 
 #endif // NDEBUG
 
 Color RenderObject::selectionBackgroundColor() const
 {
     Color color;
     if (style()->userSelect() != SELECT_NONE) {
-        RefPtr<RenderStyle> pseudoStyle = getUncachedPseudoStyle(PseudoStyleRequest(SELECTION));
-        if (pseudoStyle && pseudoStyle->visitedDependentColor(CSSPropertyBackgroundColor).isValid())
-            color = pseudoStyle->visitedDependentColor(CSSPropertyBackgroundColor).blendWithWhite();
-        else
-            color = frame()->selection()->isFocusedAndActive() ?
-                    theme()->activeSelectionBackgroundColor() :
-                    theme()->inactiveSelectionBackgroundColor();
+        if (frame()->selection()->shouldShowBlockCursor() && frame()->selection()->isCaret()) {
+            color = style()->visitedDependentColor(CSSPropertyColor).blendWithWhite();
+        } else {
+            RefPtr<RenderStyle> pseudoStyle = getUncachedPseudoStyle(PseudoStyleRequest(SELECTION));
+            if (pseudoStyle && pseudoStyle->visitedDependentColor(CSSPropertyBackgroundColor).isValid())
+                color = pseudoStyle->visitedDependentColor(CSSPropertyBackgroundColor).blendWithWhite();
+            else
+                color = frame()->selection()->isFocusedAndActive() ? theme()->activeSelectionBackgroundColor() : theme()->inactiveSelectionBackgroundColor();
+        }
     }
 
     return color;
 }
 
 Color RenderObject::selectionColor(int colorProperty) const
 {
     Color color;
     // If the element is unselectable, or we are only painting the selection,
     // don't override the foreground color with the selection foreground color.
@@ skipping 1565 matching lines @@
 {
     if (object1) {
         const WebCore::RenderObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showRenderTreeAndMark(object1, "*", object2, "-", 0);
     }
 }
 
 #endif