Remove FOR_EACH_OBSERVER macro usage in chrome/browser/supervised_user

chrome/browser/content_settings/tab_specific_content_settings.cc

 // Copyright (c) 2012 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/content_settings/tab_specific_content_settings.h"
 
 #include <list>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
@@ skipping 96 matching lines @@
       subresource_filter_blockage_indicated_(false),
       observer_(this) {
   ClearContentSettingsExceptForNavigationRelatedSettings();
   ClearNavigationRelatedContentSettings();
 
   observer_.Add(HostContentSettingsMapFactory::GetForProfile(
       Profile::FromBrowserContext(tab->GetBrowserContext())));
 }
 
 TabSpecificContentSettings::~TabSpecificContentSettings() {
-  FOR_EACH_OBSERVER(
-      SiteDataObserver, observer_list_, ContentSettingsDestroyed());
+  for (SiteDataObserver& observer : observer_list_)
+    observer.ContentSettingsDestroyed();
 }
 
 TabSpecificContentSettings* TabSpecificContentSettings::GetForFrame(
     int render_process_id,
     int render_frame_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   content::RenderFrameHost* frame = content::RenderFrameHost::FromID(
       render_process_id, render_frame_id);
   WebContents* web_contents = WebContents::FromRenderFrameHost(frame);
@@ skipping 726 matching lines @@
     SiteDataObserver* observer) {
   observer_list_.AddObserver(observer);
 }
 
 void TabSpecificContentSettings::RemoveSiteDataObserver(
     SiteDataObserver* observer) {
   observer_list_.RemoveObserver(observer);
 }
 
 void TabSpecificContentSettings::NotifySiteDataObservers() {
-  FOR_EACH_OBSERVER(SiteDataObserver, observer_list_, OnSiteDataAccessed());
+  for (SiteDataObserver& observer : observer_list_)
+    observer.OnSiteDataAccessed();
 }
 
 void TabSpecificContentSettings::ClearGeolocationContentSettings() {
   geolocation_usages_state_.ClearStateMap();
 }
 
 void TabSpecificContentSettings::ClearMidiContentSettings() {
   midi_usages_state_.ClearStateMap();
 }
 
@@ skipping 33 matching lines @@
       static_cast<MicrophoneCameraStateFlags>(
           TabSpecificContentSettings::MICROPHONE_ACCESSED |
           TabSpecificContentSettings::MICROPHONE_BLOCKED |
           TabSpecificContentSettings::CAMERA_ACCESSED |
           TabSpecificContentSettings::CAMERA_BLOCKED);
   OnMediaStreamPermissionSet(
       web_contents()->GetLastCommittedURL(),
       media_blocked,
       std::string(), std::string(), std::string(), std::string());
 }