Clean lint in various files under renderer_host.

This all shows up in vscode, I'm only cleaning up the files I open
frequently.

Change-Id: Ife48d86e5c465e52a12f3de00abbfbb706189687
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2763505
Commit-Queue: Fergal Daly <[email protected]>
Commit-Queue: Matt Falkenhagen <[email protected]>
Auto-Submit: Fergal Daly <[email protected]>
Reviewed-by: Matt Falkenhagen <[email protected]>
Cr-Commit-Position: refs/heads/master@{#863120}
diff --git a/content/browser/renderer_host/navigation_controller_impl.cc b/content/browser/renderer_host/navigation_controller_impl.cc
index 2160142..c93f0a78 100644
--- a/content/browser/renderer_host/navigation_controller_impl.cc
+++ b/content/browser/renderer_host/navigation_controller_impl.cc
@@ -2086,11 +2086,10 @@
   needs_reload_type_ = NeedsReloadType::kCopyStateFrom;
   InsertEntriesFrom(source, source->GetEntryCount());
 
-  for (auto it = source->session_storage_namespace_map_.begin();
-       it != source->session_storage_namespace_map_.end(); ++it) {
+  for (auto& it : source->session_storage_namespace_map_) {
     SessionStorageNamespaceImpl* source_namespace =
-        static_cast<SessionStorageNamespaceImpl*>(it->second.get());
-    session_storage_namespace_map_[it->first] = source_namespace->Clone();
+        static_cast<SessionStorageNamespaceImpl*>(it.second.get());
+    session_storage_namespace_map_[it.first] = source_namespace->Clone();
   }
 
   FinishRestore(source->last_committed_entry_index_, RestoreType::kRestored);