Restore support for multisample locations


Bug: skia:
Change-Id: I971455867e54d431cc1094fca041f773f78748ee
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/196218
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/vk/GrVkGpu.h b/src/gpu/vk/GrVkGpu.h
index ff35299..663229a 100644
--- a/src/gpu/vk/GrVkGpu.h
+++ b/src/gpu/vk/GrVkGpu.h
@@ -73,6 +73,12 @@
         kSkip_SyncQueue
     };
 
+    void querySampleLocations(
+            GrRenderTarget*, const GrStencilSettings&, SkTArray<SkPoint>*) override {
+        SkASSERT(!this->caps()->sampleLocationsSupport());
+        SK_ABORT("Sample locations not yet implemented for Vulkan.");
+    }
+
     void xferBarrier(GrRenderTarget*, GrXferBarrierType) override {}
 
 #if GR_TEST_UTILS