Revert of Remove DrawFace enum from GrPipelineBuilder

src/gpu/GrPipelineBuilder.h

Index: src/gpu/GrPipelineBuilder.h
diff --git a/src/gpu/GrPipelineBuilder.h b/src/gpu/GrPipelineBuilder.h
index dca7f3603483c7ed802ca24756f6eb8bb41dc5fc..06c843fe539237b438214ba8c03d2c6554741925 100644
--- a/src/gpu/GrPipelineBuilder.h
+++ b/src/gpu/GrPipelineBuilder.h
@@ -266,19 +266,27 @@
     /// @name Face Culling
     ////
 
+    enum DrawFace {
+        kInvalid_DrawFace = -1,
+
+        kBoth_DrawFace,
+        kCCW_DrawFace,
+        kCW_DrawFace,
+    };
+
     /**
      * Gets whether the target is drawing clockwise, counterclockwise,
      * or both faces.
      * @return the current draw face(s).
      */
-    GrDrawFace getDrawFace() const { return fDrawFace; }
+    DrawFace getDrawFace() const { return fDrawFace; }
 
     /**
      * Controls whether clockwise, counterclockwise, or both faces are drawn.
      * @param face  the face(s) to draw.
      */
-    void setDrawFace(GrDrawFace face) {
-        SkASSERT(GrDrawFace::kInvalid != face);
+    void setDrawFace(DrawFace face) {
+        SkASSERT(kInvalid_DrawFace != face);
         fDrawFace = face;
     }
 
@@ -297,7 +305,7 @@
 
     uint32_t                                fFlags;
     const GrUserStencilSettings*            fUserStencilSettings;
-    GrDrawFace                              fDrawFace;
+    DrawFace                                fDrawFace;
     mutable sk_sp<GrXPFactory>              fXPFactory;
     FragmentProcessorArray                  fColorFragmentProcessors;
     FragmentProcessorArray                  fCoverageFragmentProcessors;