cc: Only register live tiles with the TileManager

cc/picture_layer_tiling_set_unittest.cc

Index: cc/picture_layer_tiling_set_unittest.cc
diff --git a/cc/picture_layer_tiling_set_unittest.cc b/cc/picture_layer_tiling_set_unittest.cc
index b76ac8f8e8fcbb62ed5b203a00ea082092987eef..3e374cdf151c7d766bef0145566fbcf5f1c52304 100644
--- a/cc/picture_layer_tiling_set_unittest.cc
+++ b/cc/picture_layer_tiling_set_unittest.cc
@@ -74,6 +74,7 @@ class PictureLayerTilingSetTestWithResources : public testing::Test {
     float scale = min_scale;
     for (int i = 0; i < num_tilings; ++i, scale += scale_increment) {
       PictureLayerTiling* tiling = set.AddTiling(scale);
+      tiling->RegisterAllTilesManagedForTesting();
       std::vector<Tile*> tiles = tiling->AllTilesForTesting();
       for (size_t i = 0; i < tiles.size(); ++i) {
         EXPECT_FALSE(tiles[i]->ManagedStateForTesting()->resource);