Merge "Fix render thread early termination" into main

  std::mutex mLock;

  std::deque<std::unique_ptr<ProcessCaptureRequestTask>> mQueue GUARDED_BY(mLock);

  std::condition_variable mCondVar;

  volatile bool mTextureUpdateRequested GUARDED_BY(mLock);

  volatile bool mPendingExit GUARDED_BY(mLock);

  volatile bool GUARDED_BY(mLock) mTextureUpdateRequested = false;

  volatile bool GUARDED_BY(mLock) mPendingExit = false;

  // Acquisition timestamp of last frame.

  std::atomic<uint64_t> mLastAcquisitionTimestampNanoseconds;