Update from https://crrev.com/320343

gpu/command_buffer/client/share_group.cc

Index: gpu/command_buffer/client/share_group.cc
diff --git a/gpu/command_buffer/client/share_group.cc b/gpu/command_buffer/client/share_group.cc
index 64632005493a03902c9d40cea05c1f67c4e0ce17..f5c9bf1144cfe5c148db93f0226ac664989d57e8 100644
--- a/gpu/command_buffer/client/share_group.cc
+++ b/gpu/command_buffer/client/share_group.cc
@@ -60,9 +60,7 @@ class IdHandler : public IdHandlerInterface {
     (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;
   }