FYI: Adds V8PrivateProperty::getOrUndefined().

third_party/WebKit/Source/modules/webgl/WebGLProgram.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebGLProgram_h
 #define WebGLProgram_h
 
-#include "bindings/core/v8/ScopedPersistent.h"
 #include "modules/webgl/WebGLShader.h"
 #include "modules/webgl/WebGLSharedPlatform3DObject.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class WebGLProgram final : public WebGLSharedPlatform3DObject {
     DEFINE_WRAPPERTYPEINFO();
 public:
@@ skipping 12 matching lines @@
     void increaseLinkCount();
 
     unsigned activeTransformFeedbackCount() const { return m_activeTransformFeedbackCount; }
     void increaseActiveTransformFeedbackCount();
     void decreaseActiveTransformFeedbackCount();
 
     WebGLShader* getAttachedShader(GLenum);
     bool attachShader(WebGLShader*);
     bool detachShader(WebGLShader*);
 
-    ScopedPersistent<v8::Array>* getPersistentCache();
-
     DECLARE_VIRTUAL_TRACE();
 
 protected:
     explicit WebGLProgram(WebGLRenderingContextBase*);
 
     void deleteObjectImpl(gpu::gles2::GLES2Interface*) override;
 
 private:
     bool isProgram() const override { return true; }
 
     void cacheInfoIfNeeded(WebGLRenderingContextBase*);
 
     GLint m_linkStatus;
 
     // This is used to track whether a WebGLUniformLocation belongs to this
     // program or not.
     unsigned m_linkCount;
 
     // This is used to track the program being used by active transform
     // feedback objects.
     unsigned m_activeTransformFeedbackCount;
 
     Member<WebGLShader> m_vertexShader;
     Member<WebGLShader> m_fragmentShader;
 
     bool m_infoValid;
-
-    ScopedPersistent<v8::Array> m_shaderWrappers;
 };
 
 } // namespace blink
 
 #endif // WebGLProgram_h