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/tests/ProcessorTest.cpp b/tests/ProcessorTest.cpp
index 8354225..4cc7780 100644
--- a/tests/ProcessorTest.cpp
+++ b/tests/ProcessorTest.cpp
@@ -46,7 +46,7 @@
         this->setBounds(SkRect::MakeWH(100, 100), HasAABloat::kNo, IsZeroArea::kNo);
     }
 
-    void onPrepareDraws(Target* target) const override { return; }
+    void onPrepareDraws(Target* target) override { return; }
 
     bool onCombineIfPossible(GrOp* op, const GrCaps& caps) override { return false; }