Reduce usage of FOR_EACH_OBSERVER macro in components/

components/wallpaper/wallpaper_manager_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/wallpaper/wallpaper_manager_base.h"
 
 #include <numeric>
 #include <vector>
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 612 matching lines @@
 void WallpaperManagerBase::SetUserWallpaperDelayed(
     const AccountId& account_id) {
   ScheduleSetUserWallpaper(account_id, true);
 }
 
 void WallpaperManagerBase::SetUserWallpaperNow(const AccountId& account_id) {
   ScheduleSetUserWallpaper(account_id, false);
 }
 
 void WallpaperManagerBase::UpdateWallpaper(bool clear_cache) {
-  FOR_EACH_OBSERVER(Observer, observers_, OnUpdateWallpaperForTesting());
+  for (auto& observer : observers_)
+    observer.OnUpdateWallpaperForTesting();
   if (clear_cache)
     wallpaper_cache_.clear();
   SetUserWallpaperNow(last_selected_user_);
 }
 
 void WallpaperManagerBase::AddObserver(
     WallpaperManagerBase::Observer* observer) {
   observers_.AddObserver(observer);
 }
 
 void WallpaperManagerBase::RemoveObserver(
     WallpaperManagerBase::Observer* observer) {
   observers_.RemoveObserver(observer);
 }
 
 void WallpaperManagerBase::NotifyAnimationFinished() {
-  FOR_EACH_OBSERVER(Observer, observers_,
-                    OnWallpaperAnimationFinished(last_selected_user_));
+  for (auto& observer : observers_)
+    observer.OnWallpaperAnimationFinished(last_selected_user_);
 }
 
 // WallpaperManager, protected: -----------------------------------------------
 
 bool WallpaperManagerBase::GetWallpaperFromCache(const AccountId& account_id,
                                                  gfx::ImageSkia* image) {
   DCHECK(thread_checker_.CalledOnValidThread());
   CustomWallpaperMap::const_iterator it = wallpaper_cache_.find(account_id);
   if (it != wallpaper_cache_.end() && !(*it).second.second.isNull()) {
     *image = (*it).second.second;
@@ skipping 358 matching lines @@
 void WallpaperManagerBase::CreateSolidDefaultWallpaper() {
   loaded_wallpapers_for_test_++;
   SkBitmap bitmap;
   bitmap.allocN32Pixels(1, 1);
   bitmap.eraseColor(kDefaultWallpaperColor);
   const gfx::ImageSkia image = gfx::ImageSkia::CreateFrom1xBitmap(bitmap);
   default_wallpaper_image_.reset(new user_manager::UserImage(image));
 }
 
 }  // namespace wallpaper