From: Nico Grunbaum <na-g@nostrum.com>
Date: Thu, 28 Oct 2021 18:13:00 +0000
Subject: Bug 1729367 - P7 - restore mac PID tracking using new API;r=mjf
 a=webrtc-update

Differential Revision: https://phabricator.services.mozilla.com/D129721
Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/1495ca5ef535f8ad692a3a579ca42eddc14f39a8
---
 modules/desktop_capture/window_capturer_mac.mm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules/desktop_capture/window_capturer_mac.mm b/modules/desktop_capture/window_capturer_mac.mm
index 56c94baada..8f5dc25516 100644
--- a/modules/desktop_capture/window_capturer_mac.mm
+++ b/modules/desktop_capture/window_capturer_mac.mm
@@ -169,8 +169,9 @@ void WindowCapturerMac::CaptureFrame() {
           return webrtc::GetWindowList(
               [sources](CFDictionaryRef window) {
                 WindowId window_id = GetWindowId(window);
+                int pid = GetWindowOwnerPid(window);
                 if (window_id != kNullWindowId) {
-                  sources->push_back(DesktopCapturer::Source{window_id, GetWindowTitle(window)});
+                  sources->push_back(DesktopCapturer::Source{window_id, pid, GetWindowTitle(window)});
                 }
                 return true;
               },