| `//pdf` contains the PDF plugin, its Blink-based replacement, as well as PDF |
| utility functions that leverage PDFium. It can use low-level components that |
| live below the content layer, as well as other foundational code like |
| `//printing`. It should not use `//content` or anything in `//components` that |
| lives above the content layer. Code that lives above the content layer should |
| live in `//components/pdf`, or in the embedder. All the code here should run in |
| sandboxed child processes. |
| |
| TODO(crbug.com/1220865): Remove existing `//content` dependencies. |
