APIs which took colorPOI / coveragePOI pairs updated to take a GrPipelineOptimizations struct

src/effects/SkArithmeticMode_gpu.h

Index: src/effects/SkArithmeticMode_gpu.h
diff --git a/src/effects/SkArithmeticMode_gpu.h b/src/effects/SkArithmeticMode_gpu.h
index b24d23a6e6f3b8e81018a78f7ccffa818d2d8c80..d6b1f881dff4a839a02d80e81d11fff328307a1d 100644
--- a/src/effects/SkArithmeticMode_gpu.h
+++ b/src/effects/SkArithmeticMode_gpu.h
@@ -88,14 +88,12 @@ private:
     GrArithmeticXPFactory(float k1, float k2, float k3, float k4, bool enforcePMColor); 
 
     GrXferProcessor* onCreateXferProcessor(const GrCaps& caps,
-                                           const GrProcOptInfo& colorPOI,
-                                           const GrProcOptInfo& coveragePOI,
+                                           const GrPipelineOptimizations& optimizations,
                                            bool hasMixedSamples,
                                            const DstTexture*) const override; 
 
     bool willReadDstColor(const GrCaps& caps,
-                          const GrProcOptInfo& colorPOI,
-                          const GrProcOptInfo& coveragePOI,
+                          const GrPipelineOptimizations& optimizations,
                           bool hasMixedSamples) const override {
         return true;
     }