Remove usage of base::ObserverList<T>::Iter::GetNext() in //components/renderer_context_menu.

components/renderer_context_menu/render_view_context_menu_base.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 "components/renderer_context_menu/render_view_context_menu_base.h"
 
 #include <algorithm>
 #include <utility>
 #include <vector>
 
@@ skipping 243 matching lines @@
   AddCustomItemsToMenu(params_.custom_items, 0, &total_items, &custom_submenus_,
                        this, &menu_model_);
   return total_items > 0;
 }
 
 bool RenderViewContextMenuBase::IsCommandIdKnown(
     int id,
     bool* enabled) const {
   // If this command is added by one of our observers, we dispatch
   // it to the observer.
-  base::ObserverListBase<RenderViewContextMenuObserver>::Iterator it(
-      &observers_);
-  RenderViewContextMenuObserver* observer;
-  while ((observer = it.GetNext()) != NULL) {
-    if (observer->IsCommandIdSupported(id)) {
-      *enabled = observer->IsCommandIdEnabled(id);
+  for (auto& observer : observers_) {
+    if (observer.IsCommandIdSupported(id)) {
+      *enabled = observer.IsCommandIdEnabled(id);
       return true;
     }
   }
 
   // Custom items.
   if (IsContentCustomCommandId(id)) {
     *enabled = IsCustomItemEnabled(id);
     return true;
   }
 
   return false;
 }
 
 // Menu delegate functions -----------------------------------------------------
 
 bool RenderViewContextMenuBase::IsCommandIdChecked(int id) const {
   // If this command is is added by one of our observers, we dispatch it to the
   // observer.
-  base::ObserverListBase<RenderViewContextMenuObserver>::Iterator it(
-      &observers_);
-  RenderViewContextMenuObserver* observer;
-  while ((observer = it.GetNext()) != NULL) {
-    if (observer->IsCommandIdSupported(id))
-      return observer->IsCommandIdChecked(id);
+  for (auto& observer : observers_) {
+    if (observer.IsCommandIdSupported(id))
+      return observer.IsCommandIdChecked(id);
   }
 
   // Custom items.
   if (IsContentCustomCommandId(id))
     return IsCustomItemChecked(id);
 
   return false;
 }
 
 void RenderViewContextMenuBase::ExecuteCommand(int id, int event_flags) {
   command_executed_ = true;
   RecordUsedItem(id);
 
   // If this command is is added by one of our observers, we dispatch
   // it to the observer.
-  base::ObserverListBase<RenderViewContextMenuObserver>::Iterator it(
-      &observers_);
-  RenderViewContextMenuObserver* observer;
-  while ((observer = it.GetNext()) != NULL) {
-    if (observer->IsCommandIdSupported(id))
-      return observer->ExecuteCommand(id);
+  for (auto& observer : observers_) {
+    if (observer.IsCommandIdSupported(id))
+      return observer.ExecuteCommand(id);
   }
 
   // Process custom actions range.
   if (IsContentCustomCommandId(id)) {
     unsigned action = id - content_context_custom_first;
     const content::CustomContextMenuContext& context = params_.custom_context;
 #if defined(ENABLE_PLUGINS)
     if (context.request_id && !context.is_pepper_menu)
       HandleAuthorizeAllPlugins();
 #endif
@@ skipping 83 matching lines @@
   NotifyURLOpened(url, new_contents);
 }
 
 bool RenderViewContextMenuBase::IsCustomItemChecked(int id) const {
   return IsCustomItemCheckedInternal(params_.custom_items, id);
 }
 
 bool RenderViewContextMenuBase::IsCustomItemEnabled(int id) const {
   return IsCustomItemEnabledInternal(params_.custom_items, id);
 }