METER with -webkit-appearance:none should be rendered with the normal CSS way.

third_party/WebKit/Source/core/html/HTMLMeterElement.h

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 42 matching lines @@
 
     double high() const;
     void setHigh(double);
 
     double optimum() const;
     void setOptimum(double);
 
     double valueRatio() const;
     GaugeRegion getGaugeRegion() const;
 
-    bool canContainRangeEndPoint() const override { return false; }
+    bool canContainRangeEndPoint() const override;
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     explicit HTMLMeterElement(Document&);
     ~HTMLMeterElement() override;
 
     bool areAuthorShadowsAllowed() const override { return false; }
 
     bool supportLabels() const override { return true; }
 
     LayoutObject* createLayoutObject(const ComputedStyle&) override;
     void parseAttribute(const QualifiedName&, const AtomicString&, const AtomicString&) override;
 
     void didElementStateChange();
     void updateValueAppearance(double percentage);
     void didAddUserAgentShadowRoot(ShadowRoot&) override;
 
     Member<HTMLDivElement> m_value;
 };
 
 } // namespace blink
 
 #endif // HTMLMeterElement_h