Remove WebGLObject maps from WebGLRenderingContextBase and WebGLContextGroup.

third_party/WebKit/Source/modules/webgl/WebGLDrawBuffers.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 17 matching lines @@
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "modules/webgl/WebGLFramebuffer.h"
 
 namespace blink {
 
 WebGLDrawBuffers::WebGLDrawBuffers(WebGLRenderingContextBase* context)
     : WebGLExtension(context) {
   context->extensionsUtil()->ensureExtensionEnabled("GL_EXT_draw_buffers");
 }
 
-WebGLDrawBuffers::~WebGLDrawBuffers() {}
-
 WebGLExtensionName WebGLDrawBuffers::name() const {
   return WebGLDrawBuffersName;
 }
 
 WebGLDrawBuffers* WebGLDrawBuffers::create(WebGLRenderingContextBase* context) {
   return new WebGLDrawBuffers(context);
 }
 
 // static
 bool WebGLDrawBuffers::supported(WebGLRenderingContextBase* context) {
@@ skipping 139 matching lines @@
   if (supportsDepth)
     gl->DeleteTextures(1, &depth);
   if (supportsDepthStencil)
     gl->DeleteTextures(1, &depthStencil);
   gl->DeleteTextures(colors.size(), colors.data());
 
   return ok;
 }
 
 }  // namespace blink