Reduce usage of FOR_EACH_OBSERVER macro in content/browser

content/browser/webrtc/webrtc_internals.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/webrtc/webrtc_internals.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <utility>
@@ skipping 509 matching lines @@
         "WebRTC has active PeerConnections",
         BrowserThread::GetTaskRunnerForThread(BrowserThread::UI),
         BrowserThread::GetTaskRunnerForThread(BrowserThread::FILE)));
   }
 }
 
 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();
   }
 }
 
 }  // namespace content