Remove WebGLObject maps from WebGLRenderingContextBase and WebGLContextGroup.

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

 /*
  * Copyright (C) 2013 Google 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
@@ skipping 14 matching lines @@
 
 #include "modules/webgl/EXTFragDepth.h"
 
 namespace blink {
 
 EXTFragDepth::EXTFragDepth(WebGLRenderingContextBase* context)
     : WebGLExtension(context) {
   context->extensionsUtil()->ensureExtensionEnabled("GL_EXT_frag_depth");
 }
 
-EXTFragDepth::~EXTFragDepth() {}
-
 WebGLExtensionName EXTFragDepth::name() const {
   return EXTFragDepthName;
 }
 
 EXTFragDepth* EXTFragDepth::create(WebGLRenderingContextBase* context) {
   return new EXTFragDepth(context);
 }
 
 bool EXTFragDepth::supported(WebGLRenderingContextBase* context) {
   return context->extensionsUtil()->supportsExtension("GL_EXT_frag_depth");
 }
 
 const char* EXTFragDepth::extensionName() {
   return "EXT_frag_depth";
 }
 
 }  // namespace blink