Reduce usage of FOR_EACH_OBSERVER macro in chrome/browser

chrome/browser/permissions/permission_request_manager.cc

 // Copyright 2014 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 "chrome/browser/permissions/permission_request_manager.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/metrics/user_metrics_action.h"
@@ skipping 485 matching lines @@
 
 void PermissionRequestManager::AddObserver(Observer* observer) {
   observer_list_.AddObserver(observer);
 }
 
 void PermissionRequestManager::RemoveObserver(Observer* observer) {
   observer_list_.RemoveObserver(observer);
 }
 
 void PermissionRequestManager::NotifyBubbleAdded() {
-  FOR_EACH_OBSERVER(Observer, observer_list_, OnBubbleAdded());
+  for (Observer& observer : observer_list_)
+    observer.OnBubbleAdded();
 }
 
 void PermissionRequestManager::DoAutoResponseForTesting() {
   switch (auto_response_for_test_) {
     case ACCEPT_ALL:
       Accept();
       break;
     case DENY_ALL:
       Deny();
       break;
     case DISMISS:
       Closing();
       break;
     case NONE:
       NOTREACHED();
   }
 }