tools/gn: Change auto to not deduce raw pointers.

tools/gn/target.cc

Index: tools/gn/target.cc
diff --git a/tools/gn/target.cc b/tools/gn/target.cc
index 85955a7168fb371ffea80321bcf8c6c777d4e597..27d91ec80bf47068203234cf6f0344b910263167 100644
--- a/tools/gn/target.cc
+++ b/tools/gn/target.cc
@@ -128,7 +128,7 @@ bool EnsureFileIsGeneratedByDependency(const Target* target,
         return true;  // Found a path.
     }
     if (target->output_type() == Target::CREATE_BUNDLE) {
-      for (const auto& dep : target->bundle_data().bundle_deps()) {
+      for (auto* dep : target->bundle_data().bundle_deps()) {
         if (EnsureFileIsGeneratedByDependency(dep, file, false,
                                               consider_object_files,
                                               check_data_deps, seen_targets))
@@ -524,7 +524,7 @@ void Target::PullRecursiveBundleData() {
       bundle_data_.AddBundleData(pair.ptr);
 
     // Recursive bundle_data informations from all dependencies.
-    for (const auto& target : pair.ptr->bundle_data().bundle_deps())
+    for (auto* target : pair.ptr->bundle_data().bundle_deps())
       bundle_data_.AddBundleData(target);
   }