Add Audittrail for path renderers

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1588683002

Review URL: https://codereview.chromium.org/1588683002
diff --git a/src/gpu/GrTest.cpp b/src/gpu/GrTest.cpp
index b83d67f..8174d76 100644
--- a/src/gpu/GrTest.cpp
+++ b/src/gpu/GrTest.cpp
@@ -261,6 +261,7 @@
     ASSERT_SINGLE_OWNER
     RETURN_IF_ABANDONED
     SkDEBUGCODE(this->validate();)
+    GR_AUDIT_TRAIL_AUTO_FRAME(fAuditTrail, "GrDrawContext::internal_drawBatch");
 
     this->getDrawTarget()->drawBatch(pipelineBuilder, batch);
 }