Rename GrOptDrawState to GrPipeline and GrDrawState to GrPipelineBuilder

BUG=skia:

Review URL: https://codereview.chromium.org/858343002
diff --git a/src/gpu/effects/GrDashingEffect.h b/src/gpu/effects/GrDashingEffect.h
index 651a240..5552f1d 100644
--- a/src/gpu/effects/GrDashingEffect.h
+++ b/src/gpu/effects/GrDashingEffect.h
@@ -14,18 +14,19 @@
 #include "SkPathEffect.h"
 
 class GrGpu;
-class GrDrawState;
 class GrDrawTarget;
 class GrGeometryProcessor;
 class GrPaint;
+class GrPipelineBuilder;
 class GrStrokeInfo;
 
 class GrGLDashingEffect;
 class SkPath;
 
 namespace GrDashingEffect {
-    bool DrawDashLine(GrGpu*, GrDrawTarget*, GrDrawState*, GrColor, const SkMatrix& viewMatrix,
-                      const SkPoint pts[2], const GrPaint& paint, const GrStrokeInfo& strokeInfo);
+    bool DrawDashLine(GrGpu*, GrDrawTarget*, GrPipelineBuilder*, GrColor,
+                      const SkMatrix& viewMatrix, const SkPoint pts[2], const GrPaint& paint,
+                      const GrStrokeInfo& strokeInfo);
 
     enum DashCap {
         kRound_DashCap,