cc: Remove direct calls to LayerImpl::SetHasRenderSurface from tests

cc/tiles/tile_manager_unittest.cc

Index: cc/tiles/tile_manager_unittest.cc
diff --git a/cc/tiles/tile_manager_unittest.cc b/cc/tiles/tile_manager_unittest.cc
index d176e9da980a5d064416597bb8cb1f22074fa702..73460f67a7420869162e879fbf3162ebce6444c2 100644
--- a/cc/tiles/tile_manager_unittest.cc
+++ b/cc/tiles/tile_manager_unittest.cc
@@ -1793,7 +1793,6 @@ TEST_F(PartialRasterTileManagerTest, CancelledTasksHaveNoContentId) {
       FakePictureLayerImpl::CreateWithRasterSource(pending_tree, kLayerId,
                                                    pending_raster_source);
   pending_layer->SetDrawsContent(true);
-  pending_layer->SetHasRenderSurface(true);
 
   // The bounds() just mirror the raster source size.
   pending_layer->SetBounds(pending_layer->raster_source()->GetSize());
@@ -1889,7 +1888,6 @@ void RunPartialRasterCheck(std::unique_ptr<LayerTreeHostImpl> host_impl,
       FakePictureLayerImpl::CreateWithRasterSource(pending_tree, kLayerId,
                                                    pending_raster_source);
   pending_layer->SetDrawsContent(true);
-  pending_layer->SetHasRenderSurface(true);
 
   // The bounds() just mirror the raster source size.
   pending_layer->SetBounds(pending_layer->raster_source()->GetSize());