Revert of Remove create/delete methods from WebGraphicsContext3D.

third_party/WebKit/Source/platform/graphics/gpu/SharedContextRateLimiter.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 "platform/graphics/gpu/SharedContextRateLimiter.h"
 
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "platform/graphics/gpu/Extensions3DUtil.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebGraphicsContext3D.h"
@@ skipping 25 matching lines @@
         m_canUseSyncQueries = extensionsUtil->supportsExtension("GL_CHROMIUM_sync_query");
     }
 }
 
 void SharedContextRateLimiter::tick()
 {
     if (!m_contextProvider)
         return;
 
     gpu::gles2::GLES2Interface* gl = m_contextProvider->contextGL();
+
     if (!gl || gl->GetGraphicsResetStatusKHR() != GL_NO_ERROR)
         return;
 
-    m_queries.append(0);
-    if (m_canUseSyncQueries)
-        gl->GenQueriesEXT(1, &m_queries.last());
+    WebGraphicsContext3D* context = m_contextProvider->context3d();
+    m_queries.append(m_canUseSyncQueries ? context->createQueryEXT() : 0);
     if (m_canUseSyncQueries) {
         gl->BeginQueryEXT(GL_COMMANDS_COMPLETED_CHROMIUM, m_queries.last());
         gl->EndQueryEXT(GL_COMMANDS_COMPLETED_CHROMIUM);
     }
     if (m_queries.size() > m_maxPendingTicks) {
         if (m_canUseSyncQueries) {
             WGC3Duint result;
             gl->GetQueryObjectuivEXT(m_queries.first(), GL_QUERY_RESULT_EXT, &result);
-            gl->DeleteQueriesEXT(1, &m_queries.first());
+            context->deleteQueryEXT(m_queries.first());
             m_queries.removeFirst();
         } else {
             gl->Finish();
             reset();
         }
     }
 }
 
 void SharedContextRateLimiter::reset()
 {
     if (!m_contextProvider)
         return;
 
     gpu::gles2::GLES2Interface* gl = m_contextProvider->contextGL();
     if (gl && gl->GetGraphicsResetStatusKHR() == GL_NO_ERROR) {
+        WebGraphicsContext3D* context = m_contextProvider->context3d();
         while (m_queries.size() > 0) {
-            gl->DeleteQueriesEXT(1, &m_queries.first());
+            context->deleteQueryEXT(m_queries.first());
             m_queries.removeFirst();
         }
     } else {
         m_queries.clear();
     }
 }
 
 } // namespace blink