Fix auto raw pointer deduction on linux

components/precache/core/precache_fetcher.cc

Index: components/precache/core/precache_fetcher.cc
diff --git a/components/precache/core/precache_fetcher.cc b/components/precache/core/precache_fetcher.cc
index 0bc2e1b2b40cb1e2c17a5bfdf84000c00aec1a08..e84c4d5f5a7aecef5a95192dea10fdfcbf28af61 100644
--- a/components/precache/core/precache_fetcher.cc
+++ b/components/precache/core/precache_fetcher.cc
@@ -486,12 +486,12 @@ std::unique_ptr<PrecacheUnfinishedWork> PrecacheFetcher::CancelPrecaching() {
       unfinished_work_->add_top_host()->set_hostname(top_host.hostname);
   }
   for (const auto& resource : resources_fetching_) {
-    auto new_resource = unfinished_work_->add_resource();
+    auto* new_resource = unfinished_work_->add_resource();
     new_resource->set_url(resource.url.spec());
     new_resource->set_top_host_name(resource.referrer);
   }
   for (const auto& resource : resources_to_fetch_) {
-    auto new_resource = unfinished_work_->add_resource();
+    auto* new_resource = unfinished_work_->add_resource();
     new_resource->set_url(resource.url.spec());
     new_resource->set_top_host_name(resource.referrer);
   }