Fix GPU trace marker bug

src/gpu/GrTargetCommands.cpp

Index: src/gpu/GrTargetCommands.cpp
diff --git a/src/gpu/GrTargetCommands.cpp b/src/gpu/GrTargetCommands.cpp
index d326226d1f37719dae4e996c7dc6152f76bd9725..30920f884d959a6639a0e1f907e077576521d905 100644
--- a/src/gpu/GrTargetCommands.cpp
+++ b/src/gpu/GrTargetCommands.cpp
@@ -319,6 +319,10 @@ void GrTargetCommands::flush(GrInOrderDrawBuffer* iodb) {
         if (Cmd::kDrawBatch_Cmd == iter->type()) {
             DrawBatch* db = reinterpret_cast<DrawBatch*>(iter.get());
             fBatchTarget.flushNext(db->fBatch->numberOfDraws());
+
+            if (iter->isTraced()) {
+                gpu->removeGpuTraceMarker(&newMarker);
+            }
             continue;
         }