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

Source/modules/webgl/WebGLCompressedTextureETC1.cpp

 // Copyright 2014 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.
 
 #include "config.h"
 
 #include "modules/webgl/WebGLCompressedTextureETC1.h"
 
 #include "modules/webgl/WebGLRenderingContextBase.h"
 
 namespace blink {
 
 WebGLCompressedTextureETC1::WebGLCompressedTextureETC1(WebGLRenderingContextBase* context)
     : WebGLExtension(context)
 {
     context->addCompressedTextureFormat(GL_ETC1_RGB8_OES);
 }
 
 WebGLCompressedTextureETC1::~WebGLCompressedTextureETC1()
 {
 }
 
 WebGLExtensionName WebGLCompressedTextureETC1::name() const
 {
     return WebGLCompressedTextureETC1Name;
 }
 
-WebGLCompressedTextureETC1* WebGLCompressedTextureETC1::create(WebGLRenderingContextBase* context)
+PassRefPtrWillBeRawPtr<WebGLCompressedTextureETC1> WebGLCompressedTextureETC1::create(WebGLRenderingContextBase* context)
 {
-    return new WebGLCompressedTextureETC1(context);
+    return adoptRefWillBeNoop(new WebGLCompressedTextureETC1(context));
 }
 
 bool WebGLCompressedTextureETC1::supported(WebGLRenderingContextBase* context)
 {
     Extensions3DUtil* extensionsUtil = context->extensionsUtil();
     return extensionsUtil->supportsExtension("GL_OES_compressed_ETC1_RGB8_texture");
 }
 
 const char* WebGLCompressedTextureETC1::extensionName()
 {
     return "WEBGL_compressed_texture_etc1";
 }
 
 } // namespace blink