Implement path cover with nv_path_rendering

src/gpu/GrDrawTarget.cpp

Index: src/gpu/GrDrawTarget.cpp
diff --git a/src/gpu/GrDrawTarget.cpp b/src/gpu/GrDrawTarget.cpp
index c2256a84d8c7cf5cac2df1b09df4bd76b01e4f52..5390f9ca7aaf33ca4f71f970165b8b28ff48b9f3 100644
--- a/src/gpu/GrDrawTarget.cpp
+++ b/src/gpu/GrDrawTarget.cpp
@@ -524,6 +524,14 @@ void GrDrawTarget::stencilPath(const GrPath* path, const SkStrokeRec& stroke, Sk
     this->onStencilPath(path, stroke, fill);
 }
 
+void GrDrawTarget::drawPath(const GrPath* path, const SkStrokeRec& stroke, SkPath::FillType fill) {
+    // TODO: extract portions of checkDraw that are relevant to path stenciling.
+    SkASSERT(NULL != path);
+    SkASSERT(!SkPath::IsInverseFillType(fill));
+    SkASSERT(this->caps()->pathStencilingSupport());
+    this->onDrawPath(path, stroke, fill);
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 
 bool GrDrawTarget::willUseHWAALines() const {