[Oilpan] Migrate classes under module/webgl onto oilpan heap

Source/modules/webgl/WebGLBuffer.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 WebGLBuffer_h
 #define WebGLBuffer_h
 
 #include "modules/webgl/WebGLSharedPlatform3DObject.h"
-#include "wtf/Forward.h"
-#include "wtf/PassRefPtr.h"
 
 namespace blink {
 
 class WebGLBuffer final : public WebGLSharedPlatform3DObject {
     DEFINE_WRAPPERTYPEINFO();
 public:
     ~WebGLBuffer() override;
 
-    static PassRefPtrWillBeRawPtr<WebGLBuffer> create(WebGLRenderingContextBase*);
+    static WebGLBuffer* create(WebGLRenderingContextBase*);
 
     GLenum getInitialTarget() const { return m_initialTarget; }
     void setInitialTarget(GLenum);
 
     bool hasEverBeenBound() const { return object() && m_initialTarget; }
 
 protected:
     explicit WebGLBuffer(WebGLRenderingContextBase*);
 
     void deleteObjectImpl(WebGraphicsContext3D*) override;
 
 private:
     bool isBuffer() const override { return true; }
 
     GLenum m_initialTarget;
 };
 
 } // namespace blink
 
 #endif // WebGLBuffer_h