Clarify when oval & rrects get devolved to paths in SkGpuDevice/GrDrawContext boundary

src/gpu/GrDrawContext.cpp

Index: src/gpu/GrDrawContext.cpp
diff --git a/src/gpu/GrDrawContext.cpp b/src/gpu/GrDrawContext.cpp
index 1137c57bc474a4f7035f5f607351469d93e0a260..2928025959dce6609ac7c6d6ba68646bfe59c471 100644
--- a/src/gpu/GrDrawContext.cpp
+++ b/src/gpu/GrDrawContext.cpp
@@ -464,13 +464,7 @@ void GrDrawContext::drawRRect(const GrClip& clip,
        return;
     }
 
-    if (strokeInfo.isDashed()) {
-        SkPath path;
-        path.setIsVolatile(true);
-        path.addRRect(rrect);
-        this->drawPath(clip, paint, viewMatrix, path, strokeInfo);
-        return;
-    }
+    SkASSERT(!strokeInfo.isDashed()); // this should've been devolved to a path in SkGpuDevice
 
     AutoCheckFlush acf(fDrawingManager);
 
@@ -543,13 +537,7 @@ void GrDrawContext::drawOval(const GrClip& clip,
        return;
     }
 
-    if (strokeInfo.isDashed()) {
-        SkPath path;
-        path.setIsVolatile(true);
-        path.addOval(oval);
-        this->drawPath(clip, paint, viewMatrix, path, strokeInfo);
-        return;
-    }
+    SkASSERT(!strokeInfo.isDashed()); // this should've been devolved to a path in SkGpuDevice
 
     AutoCheckFlush acf(fDrawingManager);