In crrev.com/c/1150910, we added the ability for frame scheduler to create new non-loading queues past the default throttleable, deferrable, pausable, and unpausable. Currently, these map to a QueueType based on the highest-order bit throttleable > deferrable > pausable > unpausable.

It may be cleaner to create a new QueueType for non-loading task queues to use in metrics. One thought is to keep throttleable (for separate metrics), but lump everything else into QueueType::kFrameNonLoading.

See https://cs.chromium.org/chromium/src/third_party/blink/renderer/platform/scheduler/main_thread/main_thread_task_queue.h

See TODO in https://cs.chromium.org/chromium/src/third_party/blink/renderer/platform/scheduler/main_thread/frame_task_queue_controller.h