[dawn][header] Use wgpu::StringView instead of const char*.

Bug: 42241188
Change-Id: I1a7ef7547d1a2e425b4462b6f3a3c19203ba437b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/945117
Commit-Queue: Nicolette Prevost <nicolettep@google.com>
Auto-Submit: Loko Kung <lokokung@google.com>
Reviewed-by: Nicolette Prevost <nicolettep@google.com>
1 file changed