If scissor would be empty in GrClipMaskManager::SetupClipping indicate draw can be skipped.

src/gpu/GrClipMaskManager.cpp

Index: src/gpu/GrClipMaskManager.cpp
diff --git a/src/gpu/GrClipMaskManager.cpp b/src/gpu/GrClipMaskManager.cpp
index b2b3603b9445bca32ae66271c811d7c3f86bcc18..8e57fc84d5586570b9f73314b955e6a22e8f1287 100644
--- a/src/gpu/GrClipMaskManager.cpp
+++ b/src/gpu/GrClipMaskManager.cpp
@@ -258,7 +258,7 @@ bool GrClipMaskManager::SetupClipping(GrContext* context,
                                                                &clipSpaceIBounds,
                                                                &requiresAA);
     if (elements.isEmpty()) {
-        if (GrReducedClip::kAllOut_InitialState == initialState) {
+        if (GrReducedClip::kAllOut_InitialState == initialState || clipSpaceIBounds.isEmpty()) {
             return false;
         } else {
             SkIRect scissorSpaceIBounds(clipSpaceIBounds);