Don't allow DDL GrContexts to MakeCrossContextFromPixmap

This call requires making a texture and semaphore from the main context
which are consumed on another context. If we have a DDL context we don't
have the ability to make the texture or semaphore used here.

Bug: skia:
Change-Id: If82f8da6484608e3582203ea6e6ef723928a3b0c
Reviewed-on: https://skia-review.googlesource.com/105761
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
1 file changed