Define clear regions in terms of GrFixedClip

src/gpu/GrDrawTarget.h

Index: src/gpu/GrDrawTarget.h
diff --git a/src/gpu/GrDrawTarget.h b/src/gpu/GrDrawTarget.h
index 682dd2de3300fdf718db2acb26a780c810259977..4537dafe407edbfecafd5682fa58e5980f73d444 100644
--- a/src/gpu/GrDrawTarget.h
+++ b/src/gpu/GrDrawTarget.h
@@ -214,7 +214,7 @@ private:
     void addDependency(GrDrawTarget* dependedOn);
 
     // Used only by drawContextPriv.
-    void clearStencilClip(const SkIRect&, bool insideClip, GrRenderTarget*);
+    void clearStencilClip(const GrFixedClip&, bool insideStencilMask, GrRenderTarget*);
 
     struct RecordedBatch {
         sk_sp<GrBatch> fBatch;