Remove FOR_EACH_OBSERVER macro usage in chrome/browser/sync_file_system

chrome/browser/sync_file_system/local/local_file_sync_context.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/sync_file_system/local/local_file_sync_context.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
@@ skipping 587 matching lines @@
       base::Bind(&LocalFileSyncContext::NotifyAvailableChanges,
                  this, origins_with_pending_changes_,
                  completion_callbacks));
   last_notified_changes_ = base::Time::Now();
   origins_with_pending_changes_.clear();
 }
 
 void LocalFileSyncContext::NotifyAvailableChanges(
     const std::set<GURL>& origins,
     const std::vector<base::Closure>& callbacks) {
-  FOR_EACH_OBSERVER(LocalOriginChangeObserver, origin_change_observers_,
-                    OnChangesAvailableInOrigins(origins));
+  for (auto& observer : origin_change_observers_)
+    observer.OnChangesAvailableInOrigins(origins);
   for (const auto& callback : callbacks)
     callback.Run();
 }
 
 void LocalFileSyncContext::ShutdownOnIOThread() {
   DCHECK(io_task_runner_->RunsTasksOnCurrentThread());
   shutdown_on_io_ = true;
   operation_runner_.reset();
   root_delete_helper_.reset();
   sync_status_.reset();
@@ skipping 427 matching lines @@
     return;
   }
 
   FileSystemURL url_for_sync = CreateSyncableFileSystemURLForSync(
       file_system_context, dest_url);
   file_system_context->operation_runner()->CopyInForeignFile(
       local_path, url_for_sync, callback);
 }
 
 }  // namespace sync_file_system