Show custom properties in the computed style pane of the inspector.

third_party/WebKit/Source/core/css/CSSComputedStyleDeclaration.h

 /*
  * Copyright (C) 2004 Zack Rusin <zack@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2008, 2012 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser 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,
@@ skipping 16 matching lines @@
 #include "wtf/HashMap.h"
 #include "wtf/RefPtr.h"
 #include "wtf/text/AtomicString.h"
 #include "wtf/text/AtomicStringHash.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class CSSPrimitiveValue;
 class CSSValueList;
+class CSSVariableData;
 class ExceptionState;
 class MutableStylePropertySet;
 class Node;
 class LayoutObject;
 class ComputedStyle;
 class ShadowData;
 class ShadowList;
 class StyleColor;
 class StylePropertyShorthand;
 
@@ skipping 10 matching lines @@
     void deref() override;
 #endif
 
     String getPropertyValue(CSSPropertyID) const;
     bool getPropertyPriority(CSSPropertyID) const;
 
     PassRefPtrWillBeRawPtr<MutableStylePropertySet> copyProperties() const;
 
     PassRefPtrWillBeRawPtr<CSSValue> getPropertyCSSValue(CSSPropertyID) const;
     PassRefPtrWillBeRawPtr<CSSValue> getPropertyCSSValue(AtomicString customPropertyName) const;
+    const HashMap<AtomicString, RefPtr<CSSVariableData>>* getVariables() const;
 
     PassRefPtrWillBeRawPtr<CSSValue> getFontSizeCSSValuePreferringKeyword() const;
     bool isMonospaceFont() const;
 
     PassRefPtrWillBeRawPtr<MutableStylePropertySet> copyPropertiesInSet(const Vector<CSSPropertyID>&) const;
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     CSSComputedStyleDeclaration(PassRefPtrWillBeRawPtr<Node>, bool allowVisitedStyle, const String&);
@@ skipping 30 matching lines @@
     PseudoId m_pseudoElementSpecifier;
     bool m_allowVisitedStyle;
 #if !ENABLE(OILPAN)
     unsigned m_refCount;
 #endif
 };
 
 } // namespace blink
 
 #endif // CSSComputedStyleDeclaration_h