rnk added a comment.

We need a solution to our problem in the short term, though: there must be a 
code pattern that can be used in -std=c++14 modes to accomplish what the `, ## 
__VA_ARGS__` code pattern accomplishes with GCC extensions.

As of right now, my understanding is that `__VA_OPT__` is unavailable in C++14 
mode, so I can't go fix Chrome code to use it. If there is some other 
straightforward way to achieve the outcome, I'm open to it. Until there is, 
please revert this change.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D91913/new/

https://reviews.llvm.org/D91913

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