Remove WebGLObject maps from WebGLRenderingContextBase and WebGLContextGroup.

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

 /*
  * Copyright (C) 2012 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 15 matching lines @@
 #include "modules/webgl/WebGLDepthTexture.h"
 
 namespace blink {
 
 WebGLDepthTexture::WebGLDepthTexture(WebGLRenderingContextBase* context)
     : WebGLExtension(context) {
   context->extensionsUtil()->ensureExtensionEnabled(
       "GL_CHROMIUM_depth_texture");
 }
 
-WebGLDepthTexture::~WebGLDepthTexture() {}
-
 WebGLExtensionName WebGLDepthTexture::name() const {
   return WebGLDepthTextureName;
 }
 
 WebGLDepthTexture* WebGLDepthTexture::create(
     WebGLRenderingContextBase* context) {
   return new WebGLDepthTexture(context);
 }
 
 bool WebGLDepthTexture::supported(WebGLRenderingContextBase* context) {
   Extensions3DUtil* extensionsUtil = context->extensionsUtil();
   // Emulating the UNSIGNED_INT_24_8_WEBGL texture internal format in terms
   // of two separate texture objects is too difficult, so disable depth
   // textures unless a packed depth/stencil format is available.
   if (!extensionsUtil->supportsExtension("GL_OES_packed_depth_stencil"))
     return false;
   return extensionsUtil->supportsExtension("GL_CHROMIUM_depth_texture");
 }
 
 const char* WebGLDepthTexture::extensionName() {
   return "WEBGL_depth_texture";
 }
 
 }  // namespace blink