|  | This directory has the following layout (WIP): | 
|  | - base/task/: public APIs for posting tasks and managing task queues. | 
|  | - base/task/task_scheduler/: implementation of the TaskScheduler. | 
|  | - base/task/sequence_manager/: implementation of the SequenceManager. | 
|  |  | 
|  | Apart from embedders explicitly managing a TaskScheduler and/or SequenceManager | 
|  | instance(s) for their process/threads, the vast majority of users should only | 
|  | need APIs in base/task/. | 
|  |  | 
|  | Documentation: | 
|  | - [Threading and tasks](https://chromium.googlesource.com/chromium/src/+/lkcr/docs/threading_and_tasks.md) | 
|  | - [Callbacks](https://chromium.googlesource.com/chromium/src/+/lkcr/docs/callback.md) |