Remove asMatrix as a JS-exposed method in CSSTransformComponents.

third_party/WebKit/Source/core/css/cssom/CSSSkew.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CSSSkew_h
 #define CSSSkew_h
 
-#include "core/css/cssom/CSSMatrixComponent.h"
 #include "core/css/cssom/CSSNumericValue.h"
 #include "core/css/cssom/CSSTransformComponent.h"
 
 namespace blink {
 
+class ExceptionState;
+
 // Represents a skew value in a CSSTransformValue used for properties like
 // "transform".
-// See CSSSkew.idl for more documentation about this class.
+// See CSSSkew.idl for more information about this class.
 class CORE_EXPORT CSSSkew final : public CSSTransformComponent {
   WTF_MAKE_NONCOPYABLE(CSSSkew);
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   // Constructor defined in the IDL.
   static CSSSkew* Create(CSSNumericValue* ax, CSSNumericValue* ay) {
     return new CSSSkew(ax, ay);
   }
 
   // Internal ways of creating CSSSkews.
   static CSSSkew* FromCSSValue(const CSSFunctionValue&);
 
   // Getters and setters for the ax and ay attributes defined in the IDL.
   CSSNumericValue* ax() const { return ax_.Get(); }
   CSSNumericValue* ay() const { return ay_.Get(); }
   void setAx(CSSNumericValue*, ExceptionState&);
   void setAy(CSSNumericValue*, ExceptionState&);
 
-  CSSMatrixComponent* asMatrix() const override {
+  // Internal methods - from CSSTransformComponent.
+  TransformComponentType GetType() const override { return kSkewType; }
+  DOMMatrix* AsMatrix() const override {
     return nullptr;
     // TODO(meade): Reimplement this once the number/unit types
     // are re-implemented.
     // return CSSMatrixComponent::Skew(ax_->degrees(), ay_->degrees());
   }
-
-  // Internal methods - from CSSTransformComponent.
-  TransformComponentType GetType() const override { return kSkewType; }
   CSSFunctionValue* ToCSSValue() const override;
 
   DEFINE_INLINE_VIRTUAL_TRACE() {
     visitor->Trace(ax_);
     visitor->Trace(ay_);
     CSSTransformComponent::Trace(visitor);
   }
 
  private:
   CSSSkew(CSSNumericValue* ax, CSSNumericValue* ay)
       : CSSTransformComponent(), ax_(ax), ay_(ay) {}
 
   Member<CSSNumericValue> ax_;
   Member<CSSNumericValue> ay_;
 };
 
 }  // namespace blink
 
 #endif