Add "meshCount" to GrProgramInfo

This improves the encapsulation of the GrProgramInfo class.

Bug: skia:9455
Change-Id: Ic241ba4a2c2edea3e774522065371e5ed8cc2da3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/247438
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
diff --git a/src/gpu/ops/GrDrawPathOp.cpp b/src/gpu/ops/GrDrawPathOp.cpp
index d6700d3..526ebc0 100644
--- a/src/gpu/ops/GrDrawPathOp.cpp
+++ b/src/gpu/ops/GrDrawPathOp.cpp
@@ -98,7 +98,7 @@
                               pipeline,
                               *pathProc,
                               &fixedDynamicState,
-                              nullptr);
+                              nullptr, 0);
 
     GrStencilSettings stencil;
     init_stencil_pass_settings(*state, this->fillType(), &stencil);
diff --git a/src/gpu/ops/GrFillRRectOp.cpp b/src/gpu/ops/GrFillRRectOp.cpp
index c3f86a3..6b3c023 100644
--- a/src/gpu/ops/GrFillRRectOp.cpp
+++ b/src/gpu/ops/GrFillRRectOp.cpp
@@ -756,7 +756,7 @@
                               *pipeline,
                               *proc,
                               fixedDynamicState,
-                              nullptr);
+                              nullptr, 0);
 
     GrMesh* mesh = flushState->allocator()->make<GrMesh>(GrPrimitiveType::kTriangles);
     mesh->setIndexedInstanced(