content: Change auto to not deduce raw pointers.

content/browser/frame_host/render_frame_host_manager.cc

Index: content/browser/frame_host/render_frame_host_manager.cc
diff --git a/content/browser/frame_host/render_frame_host_manager.cc b/content/browser/frame_host/render_frame_host_manager.cc
index 0af42e97b8e3676b8582dcb48a90844c17a2f6d4..e6f7b81f2717555d1f68550e02c0a93abc3f4237 100644
--- a/content/browser/frame_host/render_frame_host_manager.cc
+++ b/content/browser/frame_host/render_frame_host_manager.cc
@@ -2454,7 +2454,7 @@ void RenderFrameHostManager::CreateOpenerProxies(
   // available when created due to cycles or back links in the opener chain.
   // They must have their openers updated as a separate step after proxy
   // creation.
-  for (const auto& node : nodes_with_back_links) {
+  for (auto* node : nodes_with_back_links) {
     RenderFrameProxyHost* proxy =
         node->render_manager()->GetRenderFrameProxyHost(instance);
     // If there is no proxy, the cycle may involve nodes in the same process,