Removing tracking of whether GP/FP coverage calculations are used by XP.

Remove readsCoverage from GrPipelineOptimizations

Remove kNone from GrDefaultGeoProc::Coverage

Remove kIgnoreCoverage from GrXferProcessor::OptFlags

Remove GrPipeline::fIgnoresCoverage

Change-Id: I8f0c9337ee98b9c77af1e9a8a184519ce63822d4
Reviewed-on: https://skia-review.googlesource.com/6552
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
diff --git a/gm/convexpolyeffect.cpp b/gm/convexpolyeffect.cpp
index 2c8e660..db0b02e 100644
--- a/gm/convexpolyeffect.cpp
+++ b/gm/convexpolyeffect.cpp
@@ -58,10 +58,8 @@
         using namespace GrDefaultGeoProcFactory;
 
         Color color(this->color());
-        Coverage coverage(Coverage::kSolid_Type);
-        LocalCoords localCoords(LocalCoords::kUnused_Type);
-        sk_sp<GrGeometryProcessor> gp(
-            GrDefaultGeoProcFactory::Make(color, coverage, localCoords, SkMatrix::I()));
+        sk_sp<GrGeometryProcessor> gp(GrDefaultGeoProcFactory::Make(
+                color, Coverage::kSolid_Type, LocalCoords::kUnused_Type, SkMatrix::I()));
 
         size_t vertexStride = gp->getVertexStride();
         SkASSERT(vertexStride == sizeof(SkPoint));