Implement support for mixed sampled render targets

src/gpu/GrStencilAndCoverPathRenderer.cpp

Index: src/gpu/GrStencilAndCoverPathRenderer.cpp
diff --git a/src/gpu/GrStencilAndCoverPathRenderer.cpp b/src/gpu/GrStencilAndCoverPathRenderer.cpp
index aed1743af22216864a2aa2382a2ea724cc0c82a9..1f9144908b4477e73248bb58914bb054ad843950 100644
--- a/src/gpu/GrStencilAndCoverPathRenderer.cpp
+++ b/src/gpu/GrStencilAndCoverPathRenderer.cpp
@@ -59,7 +59,8 @@ bool GrStencilAndCoverPathRenderer::canDrawPath(const GrDrawTarget* target,
                                                 const SkStrokeRec& stroke,
                                                 bool antiAlias) const {
     return !stroke.isHairlineStyle() &&
-           !antiAlias && // doesn't do per-path AA, relies on the target having MSAA
+           (!antiAlias || // doesn't do per-path AA, relies on the target having MSAA
+           pipelineBuilder->getRenderTarget()->isMultisampled(kStencil_GrSampleConfig)) &&
            pipelineBuilder->getStencil().isDisabled();
 }
 
@@ -101,7 +102,8 @@ bool GrStencilAndCoverPathRenderer::onDrawPath(GrDrawTarget* target,
                                                const SkPath& path,
                                                const SkStrokeRec& stroke,
                                                bool antiAlias) {
-    SkASSERT(!antiAlias);
+    SkASSERT(!antiAlias ||
+             pipelineBuilder->getRenderTarget()->isMultisampled(kStencil_GrSampleConfig));
     SkASSERT(!stroke.isHairlineStyle());
 
     SkASSERT(pipelineBuilder->getStencil().isDisabled());