From 78f78bf8be09f3d833923dae0243c0087bc6f507 Mon Sep 17 00:00:00 2001
From: "trop[bot]" <37223003+trop[bot]@users.noreply.github.com>
Date: Mon, 30 Jun 2025 10:29:16 +0200
Subject: [PATCH] perf: avoid copying a vector when calling
 ConvertToWeakPtrVector() (#47602)

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: Charles Kerr <charles@charleskerr.com>
---
 shell/browser/window_list.cc | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/shell/browser/window_list.cc b/shell/browser/window_list.cc
index 188402d0e6bb..f945dfa2270b 100644
--- a/shell/browser/window_list.cc
+++ b/shell/browser/window_list.cc
@@ -6,20 +6,18 @@
 
 #include <algorithm>
 
+#include "base/containers/to_vector.h"
 #include "base/no_destructor.h"
 #include "shell/browser/native_window.h"
 #include "shell/browser/window_list_observer.h"
 
 namespace {
+
 template <typename T>
-std::vector<base::WeakPtr<T>> ConvertToWeakPtrVector(std::vector<T*> raw_ptrs) {
-  std::vector<base::WeakPtr<T>> converted_to_weak;
-  converted_to_weak.reserve(raw_ptrs.size());
-  for (auto* raw_ptr : raw_ptrs) {
-    converted_to_weak.push_back(raw_ptr->GetWeakPtr());
-  }
-  return converted_to_weak;
+auto ConvertToWeakPtrVector(const std::vector<T*>& raw_ptrs) {
+  return base::ToVector(raw_ptrs, [](T* t) { return t->GetWeakPtr(); });
 }
+
 }  // namespace
 
 namespace electron {