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

cc/trees/layer_tree_host_unittest_serialization.cc

Index: cc/trees/layer_tree_host_unittest_serialization.cc
diff --git a/cc/trees/layer_tree_host_unittest_serialization.cc b/cc/trees/layer_tree_host_unittest_serialization.cc
index becf0f304aaa27ea916c5bb3a03c9c5d14fdbc0e..20e7de0492b821c45e34feade663186122dfea25 100644
--- a/cc/trees/layer_tree_host_unittest_serialization.cc
+++ b/cc/trees/layer_tree_host_unittest_serialization.cc
@@ -154,7 +154,7 @@ class LayerTreeHostSerializationTest : public testing::Test {
     EXPECT_EQ(layer_tree_host_src_->id_, layer_tree_host_dst_->id_);
     EXPECT_EQ(layer_tree_host_src_->next_commit_forces_redraw_,
               layer_tree_host_dst_->next_commit_forces_redraw_);
-    for (auto layer : layers_that_should_push_properties_src) {
+    for (auto* layer : layers_that_should_push_properties_src) {
       EXPECT_TRUE(layer_tree_host_dst_->LayerNeedsPushPropertiesForTesting(
           layer_tree_host_dst_->LayerById(layer->id())));
     }