Rename GrOp::draw to GrOp::execute

Change-Id: I36b8532c57d0b6004a5fd283e30a506df89a4fa6
Reviewed-on: https://skia-review.googlesource.com/6387
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
diff --git a/src/gpu/instanced/InstancedRendering.h b/src/gpu/instanced/InstancedRendering.h
index 09cac98..20d0617 100644
--- a/src/gpu/instanced/InstancedRendering.h
+++ b/src/gpu/instanced/InstancedRendering.h
@@ -149,7 +149,7 @@
         void applyPipelineOptimizations(const GrPipelineOptimizations&) override;
         bool onCombineIfPossible(GrOp* other, const GrCaps& caps) override;
         void onPrepare(GrOpFlushState*) override {}
-        void onDraw(GrOpFlushState*, const SkRect& bounds) override;
+        void onExecute(GrOpFlushState*, const SkRect& bounds) override;
 
         typedef GrDrawOp INHERITED;