GaussianConvolutionFragmentProcessor uses GrTextureEffect.

Also removes now unused GrShaderVar::appendArrayAccess.

Bug: skia:10139

Change-Id: Ic2583a6822e88510551b1031f3fb130266b3f395
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/283440
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
4 files changed