Update from https://crrev.com/320343

gpu/command_buffer/client/share_group.cc

 // Copyright (c) 2012 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 <stack>
 #include <vector>
 
 #include "gpu/command_buffer/client/share_group.h"
 
 #include "base/logging.h"
@@ skipping 42 matching lines @@
                DeleteFn delete_fn) override {
     base::AutoLock auto_lock(lock_);
 
     for (GLsizei ii = 0; ii < n; ++ii) {
       id_allocator_.FreeID(ids[ii]);
     }
 
     (gl_impl->*delete_fn)(n, ids);
     // We need to ensure that the delete call is evaluated on the service side
     // before any other contexts issue commands using these client ids.
-    // TODO(vmiura): Can remove this by virtualizing internal ids, however
-    // this code only affects PPAPI for now.
-    gl_impl->helper()->CommandBufferHelper::Flush();
+    gl_impl->helper()->CommandBufferHelper::OrderingBarrier();
     return true;
   }
 
   // Overridden from IdHandlerInterface.
   bool MarkAsUsedForBind(GLES2Implementation* gl_impl,
                          GLenum target,
                          GLuint id,
                          BindFn bind_fn) override {
     base::AutoLock auto_lock(lock_);
     bool result = id ? id_allocator_.MarkAsUsed(id) : true;
@@ skipping 266 matching lines @@
 }
 
 void ShareGroup::set_program_info_manager(ProgramInfoManager* manager) {
   program_info_manager_.reset(manager);
 }
 
 ShareGroup::~ShareGroup() {}
 
 }  // namespace gles2
 }  // namespace gpu