Remove WebGLObject maps from WebGLRenderingContextBase and WebGLContextGroup.

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

 // Copyright 2015 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 "modules/webgl/EXTDisjointTimerQuery.h"
 
 #include "bindings/modules/v8/WebGLAny.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "modules/webgl/WebGLRenderingContextBase.h"
 #include "modules/webgl/WebGLTimerQueryEXT.h"
 
 namespace blink {
 
-EXTDisjointTimerQuery::~EXTDisjointTimerQuery() {}
-
 WebGLExtensionName EXTDisjointTimerQuery::name() const {
   return EXTDisjointTimerQueryName;
 }
 
 EXTDisjointTimerQuery* EXTDisjointTimerQuery::create(
     WebGLRenderingContextBase* context) {
-  EXTDisjointTimerQuery* o = new EXTDisjointTimerQuery(context);
-  return o;
+  return new EXTDisjointTimerQuery(context);
 }
 
 bool EXTDisjointTimerQuery::supported(WebGLRenderingContextBase* context) {
   return context->extensionsUtil()->supportsExtension(
       "GL_EXT_disjoint_timer_query");
 }
 
 const char* EXTDisjointTimerQuery::extensionName() {
   return "EXT_disjoint_timer_query";
 }
 
 WebGLTimerQueryEXT* EXTDisjointTimerQuery::createQueryEXT() {
   WebGLExtensionScopedContext scoped(this);
   if (scoped.isLost())
     return nullptr;
 
-  WebGLTimerQueryEXT* o = WebGLTimerQueryEXT::create(scoped.context());
-  scoped.context()->addContextObject(o);
-  return o;
+  return WebGLTimerQueryEXT::create(scoped.context());
 }
 
 void EXTDisjointTimerQuery::deleteQueryEXT(WebGLTimerQueryEXT* query) {
   WebGLExtensionScopedContext scoped(this);
   if (!query || scoped.isLost())
     return;
   query->deleteObject(scoped.context()->contextGL());
 
   if (query == m_currentElapsedQuery)
     m_currentElapsedQuery.clear();
@@ skipping 168 matching lines @@
   WebGLExtension::trace(visitor);
 }
 
 EXTDisjointTimerQuery::EXTDisjointTimerQuery(WebGLRenderingContextBase* context)
     : WebGLExtension(context) {
   context->extensionsUtil()->ensureExtensionEnabled(
       "GL_EXT_disjoint_timer_query");
 }
 
 }  // namespace blink