Revert of Remove create/delete methods from WebGraphicsContext3D.

third_party/WebKit/Source/modules/webgl/WebGLQuery.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/WebGLQuery.h"
 
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "modules/webgl/WebGL2RenderingContextBase.h"
 #include "public/platform/Platform.h"
 
@@ skipping 13 matching lines @@
 }
 
 WebGLQuery::WebGLQuery(WebGL2RenderingContextBase* ctx)
     : WebGLSharedPlatform3DObject(ctx)
     , m_target(0)
     , m_taskObserverRegistered(false)
     , m_canUpdateAvailability(false)
     , m_queryResultAvailable(false)
     , m_queryResult(0)
 {
-    GLuint query;
-    ctx->contextGL()->GenQueriesEXT(1, &query);
-    setObject(query);
+    setObject(ctx->webContext()->createQueryEXT());
 }
 
 void WebGLQuery::setTarget(GLenum target)
 {
     ASSERT(object());
     ASSERT(!m_target);
     m_target = target;
 }
 
 void WebGLQuery::deleteObjectImpl(WebGraphicsContext3D* context3d, gpu::gles2::GLES2Interface* gl)
 {
-    gl->DeleteQueriesEXT(1, &m_object);
+    context3d->deleteQueryEXT(m_object);
     m_object = 0;
 }
 
 void WebGLQuery::resetCachedResult()
 {
     m_canUpdateAvailability = false;
     m_queryResultAvailable = false;
     m_queryResult = 0;
     // When this is called, the implication is that we should start
     // keeping track of whether we can update the cached availability
@@ skipping 50 matching lines @@
         Platform::current()->currentThread()->removeTaskObserver(this);
     }
 }
 
 void WebGLQuery::didProcessTask()
 {
     m_canUpdateAvailability = true;
 }
 
 } // namespace blink