Remove WebGLObject maps from WebGLRenderingContextBase and WebGLContextGroup.

third_party/WebKit/Source/modules/webgl/WebGLShader.cpp

 /*
  * 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
@@ skipping 22 matching lines @@
 WebGLShader* WebGLShader::create(WebGLRenderingContextBase* ctx, GLenum type) {
   return new WebGLShader(ctx, type);
 }
 
 WebGLShader::WebGLShader(WebGLRenderingContextBase* ctx, GLenum type)
     : WebGLSharedPlatform3DObject(ctx), m_type(type), m_source("") {
   setObject(ctx->contextGL()->CreateShader(type));
 }
 
 WebGLShader::~WebGLShader() {
-  // See the comment in WebGLObject::detachAndDeleteObject().
-  detachAndDeleteObject();
+  runDestructor();
 }
 
 void WebGLShader::deleteObjectImpl(gpu::gles2::GLES2Interface* gl) {
   gl->DeleteShader(m_object);
   m_object = 0;
 }
 
 }  // namespace blink