Move GrProcessorSet into GrPipeline

Change-Id: Ibfa5e1adda3c32140590aa62a31d35654cef79dd
Reviewed-on: https://skia-review.googlesource.com/28187
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/ops/GrAAStrokeRectOp.cpp b/src/gpu/ops/GrAAStrokeRectOp.cpp
index e3e2b23..07d8f30 100644
--- a/src/gpu/ops/GrAAStrokeRectOp.cpp
+++ b/src/gpu/ops/GrAAStrokeRectOp.cpp
@@ -197,7 +197,7 @@
     }
 
 private:
-    void onPrepareDraws(Target*) const override;
+    void onPrepareDraws(Target*) override;
 
     static const int kMiterIndexCnt = 3 * 24;
     static const int kMiterVertexCnt = 16;
@@ -246,7 +246,7 @@
 
 }  // anonymous namespace
 
-void AAStrokeRectOp::onPrepareDraws(Target* target) const {
+void AAStrokeRectOp::onPrepareDraws(Target* target) {
     sk_sp<GrGeometryProcessor> gp(create_stroke_rect_gp(fHelper.compatibleWithAlphaAsCoverage(),
                                                         this->viewMatrix(),
                                                         fHelper.usesLocalCoords()));