Make GrPipelineInput::setToSolidCoverage set the opaque bit.

Change-Id: I3580a9bf1b40c46ac642157f50e09b1fab40c3d3
Reviewed-on: https://skia-review.googlesource.com/8485
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
1 file changed