Fix crash in rasterize_and_record_micro benchmark

This is extracted from crrev.com/c/2459866.

Remove recording_source.UpdateDisplayItemList() which caused crash when
the same DisplayItemList is updated more than once. The call is not
necessary for the benchmark.

TBR=pdr@chromium.org,vmpstr@chromium.org

Bug: 922642
Change-Id: Iad8754bf82e6d51215bb0a2c7c18bd6f6904f5eb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2462231Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#815849}

cc/benchmarks/rasterize_and_record_benchmark.cc

@@ -125,14 +125,8 @@ void RasterizeAndRecordBenchmark::RunOnLayer(PictureLayer* layer) {
     return;
 
   ContentLayerClient* painter = layer->client();
-  RecordingSource recording_source;
-
-  scoped_refptr<DisplayItemList> display_list;
-  display_list = painter->PaintContentsToDisplayList();
-  recording_source.UpdateDisplayItemList(
-      display_list, painter->GetApproximateUnsharedMemoryUsage(),
-      layer_tree_host_->recording_scale_factor());
-
+  scoped_refptr<DisplayItemList> display_list =
+      painter->PaintContentsToDisplayList();
   record_results_.painter_memory_usage +=
       painter->GetApproximateUnsharedMemoryUsage();
   record_results_.paint_op_memory_usage += display_list->BytesUsed();