Fix path renderer cache test logic to account for other resources

Bug: skia:
Change-Id: Iadf88cc07fac23544317166699138644218b38d1
Reviewed-on: https://skia-review.googlesource.com/55141
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
1 file changed