Add option to draw wireframe batch bounds

Committed: https://skia.googlesource.com/skia/+/26489ef21ff5df33b8cb5943fddfd4604e203960

Review URL: https://codereview.chromium.org/1494473005
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index ad89672..a4887e3 100644
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -88,6 +88,7 @@
 
     GrDrawTarget::Options dtOptions;
     dtOptions.fClipBatchToBounds = options.fClipBatchToBounds;
+    dtOptions.fDrawBatchBounds = options.fDrawBatchBounds;
     fDrawingManager.reset(new GrDrawingManager(this, dtOptions));
 
     // GrBatchFontCache will eventually replace GrFontCache