cc: Don't swap PictureLayerTilingSet on activate.

cc/resources/tile_manager_perftest.cc

Index: cc/resources/tile_manager_perftest.cc
diff --git a/cc/resources/tile_manager_perftest.cc b/cc/resources/tile_manager_perftest.cc
index 7b096bd261b602e409a7e1deddf775960066bcd4..9a82d743ed7c20162672a0e2c13e91be48e1f125 100644
--- a/cc/resources/tile_manager_perftest.cc
+++ b/cc/resources/tile_manager_perftest.cc
@@ -159,7 +159,8 @@ class TileManagerPerfTest : public testing::Test {
     pending_tree->DetachLayerTree();
 
     scoped_ptr<FakePictureLayerImpl> pending_layer =
-        FakePictureLayerImpl::CreateWithRasterSource(pending_tree, id_, pile);
+        FakePictureLayerImpl::CreateWithRasterSource(pending_tree, id_, pile,
+                                                     false);
     pending_layer->SetDrawsContent(true);
     pending_tree->SetRootLayer(pending_layer.Pass());
 
@@ -362,7 +363,7 @@ class TileManagerPerfTest : public testing::Test {
     while (static_cast<int>(layers.size()) < layer_count) {
       scoped_ptr<FakePictureLayerImpl> layer =
           FakePictureLayerImpl::CreateWithRasterSource(
-              host_impl_.pending_tree(), next_id, pile);
+              host_impl_.pending_tree(), next_id, pile, false);
       layer->SetBounds(layer_bounds);
       layers.push_back(layer.get());
       pending_root_layer_->AddChild(layer.Pass());