Avoid c-style string arguments to writeFile(). Demonstrate how std::string_views can be used to make code simpler and safer, since all the callers already have std::strings. Bug: b/436880895 Change-Id: I0f9d4d95925e684c83eb10c2a1fbab22df55c2d8 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6886033 Auto-Submit: Tom Sepez <tsepez@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>