cc: Fixup cc to not use auto to deduce a raw pointer.

cc/trees/layer_tree_impl.cc

Index: cc/trees/layer_tree_impl.cc
diff --git a/cc/trees/layer_tree_impl.cc b/cc/trees/layer_tree_impl.cc
index e97ee7f74d9b7a6e812f816b8ca43401673eb786..46d04ba309656f80cb57da9f918bc9673b24af41 100644
--- a/cc/trees/layer_tree_impl.cc
+++ b/cc/trees/layer_tree_impl.cc
@@ -1022,7 +1022,7 @@ bool LayerTreeImpl::UpdateDrawProperties(bool update_lcd_text) {
     // If this is not the sync tree, then it is not safe to update lcd text
     // as it causes invalidations and the tiles may be in use.
     DCHECK_EQ(this, sync_tree);
-    for (const auto& layer : picture_layers_)
+    for (auto* layer : picture_layers_)
       layer->UpdateCanUseLCDTextAfterCommit();
   }