a70ba914fa
Instead of using int -1 as a sentinel value for "no index found", switch GetProgressiveIndex() to return std::optional<size_t>. Then a bunch of int to size_t casts can go away, and more index variables can be declared as size_t. Along the way, also upgrade some cheap DCHECKs to CHECKs, and change ContinuePaint() to return early when possible. Change-Id: Iea544f39bd112190ac1ccd3a615328af10db4648 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5874539 Code-Coverage: findit-for-me@appspot.gserviceaccount.com <findit-for-me@appspot.gserviceaccount.com> Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Andy Phan <andyphan@chromium.org> Cr-Commit-Position: refs/heads/main@{#1357330}
//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/40186598): Remove existing //content dependencies.