Revert of Retract PipelineBuilder some more (patchset #9 id:160001 of https://codereview.chromium.org/2092893003/ )

Reason for revert:
skbug.com/5559

Original issue's description:
> Retract PipelineBuilder some more
>
> The main part of this CL is widening SkDrawContext::drawBatch's API to accept the userStencilSettings & drawFace
>
> There is some ancillary spookiness related to expanding the should_apply_coverage_aa & mustUseHWAA methods to encompass mixedSamples
>
> Calved off:
> https://codereview.chromium.org/2165283002/ (Remove DrawFace enum from GrPipelineBuilder)
> https://codereview.chromium.org/2167183002/ (Minor change to Ganesh path renderers)
>
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2092893003
>
> Committed: https://skia.googlesource.com/skia/+/2895eeb11a9f0d9c0018d49dd4bc45f6c6fc062c

TBR=robertphillips@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2175573004
diff --git a/src/gpu/batches/GrAAConvexPathRenderer.cpp b/src/gpu/batches/GrAAConvexPathRenderer.cpp
index 3208ead..b0ddaeb 100644
--- a/src/gpu/batches/GrAAConvexPathRenderer.cpp
+++ b/src/gpu/batches/GrAAConvexPathRenderer.cpp
@@ -17,6 +17,7 @@
 #include "GrInvariantOutput.h"
 #include "GrPathUtils.h"
 #include "GrProcessor.h"
+#include "GrPipelineBuilder.h"
 #include "SkGeometry.h"
 #include "SkPathPriv.h"
 #include "SkString.h"
@@ -1000,7 +1001,10 @@
     SkAutoTUnref<GrDrawBatch> batch(new AAConvexPathBatch(args.fPaint->getColor(),
                                                           *args.fViewMatrix, path));
 
-    args.fDrawContext->drawBatch(*args.fPaint, *args.fClip, *args.fUserStencilSettings, batch);
+    GrPipelineBuilder pipelineBuilder(*args.fPaint);
+    pipelineBuilder.setUserStencil(args.fUserStencilSettings);
+
+    args.fDrawContext->drawBatch(pipelineBuilder, *args.fClip, batch);
 
     return true;