Remove FOR_EACH_OBSERVER macro usage in chrome/browser/extensions

chrome/browser/extensions/api/braille_display_private/braille_controller_brlapi.cc

 // Copyright 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 "chrome/browser/extensions/api/braille_display_private/braille_controller_brlapi.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <algorithm>
 #include <cerrno>
@@ skipping 285 matching lines @@
 void BrailleControllerImpl::DispatchKeyEvent(std::unique_ptr<KeyEvent> event) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
                             base::Bind(
                                 &BrailleControllerImpl::DispatchKeyEvent,
                                 base::Unretained(this),
                                 base::Passed(&event)));
     return;
   }
   VLOG(1) << "Dispatching key event: " << *event->ToValue();
-  FOR_EACH_OBSERVER(BrailleObserver, observers_, OnBrailleKeyEvent(*event));
+  for (auto& observer : observers_)
+    observer.OnBrailleKeyEvent(*event);
 }
 
 void BrailleControllerImpl::DispatchOnDisplayStateChanged(
     std::unique_ptr<DisplayState> new_state) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
     if (!BrowserThread::PostTask(
             BrowserThread::UI, FROM_HERE,
             base::Bind(&BrailleControllerImpl::DispatchOnDisplayStateChanged,
                        base::Unretained(this),
                        base::Passed(&new_state)))) {
       NOTREACHED();
     }
     return;
   }
-  FOR_EACH_OBSERVER(BrailleObserver, observers_,
-                    OnBrailleDisplayStateChanged(*new_state));
+  for (auto& observer : observers_)
+    observer.OnBrailleDisplayStateChanged(*new_state);
 }
 
 }  // namespace braille_display_private
 }  // namespace api
 }  // namespace extensions