Reduce usage of FOR_EACH_OBSERVER macro in content/browser

content/browser/webrtc/webrtc_internals.cc

Index: content/browser/webrtc/webrtc_internals.cc
diff --git a/content/browser/webrtc/webrtc_internals.cc b/content/browser/webrtc/webrtc_internals.cc
index d4a517e13d25ee1f4a77518ca7d691e23582edcf..60cda5fcae3a3f359ed486a0699022dd81021b8b 100644
--- a/content/browser/webrtc/webrtc_internals.cc
+++ b/content/browser/webrtc/webrtc_internals.cc
@@ -527,9 +527,8 @@ void WebRTCInternals::ProcessPendingUpdates() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   while (!pending_updates_.empty()) {
     const auto& update = pending_updates_.front();
-    FOR_EACH_OBSERVER(WebRTCInternalsUIObserver,
-                      observers_,
-                      OnUpdate(update.command(), update.value()));
+    for (auto& observer : observers_)
+      observer.OnUpdate(update.command(), update.value());
     pending_updates_.pop();
   }
 }