Switch to standard integer types in chrome/browser/, part 2 of 4.

chrome/browser/media_galleries/media_file_system_registry.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/media_galleries/media_file_system_registry.h"
 
+#include <stddef.h>
+
 #include <set>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_path.h"
+#include "base/macros.h"
 #include "base/prefs/pref_service.h"
 #include "base/stl_util.h"
 #include "chrome/browser/media_galleries/fileapi/media_file_system_backend.h"
 #include "chrome/browser/media_galleries/fileapi/mtp_device_map_service.h"
 #include "chrome/browser/media_galleries/gallery_watch_manager.h"
 #include "chrome/browser/media_galleries/imported_media_gallery_registry.h"
 #include "chrome/browser/media_galleries/media_file_system_context.h"
 #include "chrome/browser/media_galleries/media_galleries_dialog_controller.h"
 #include "chrome/browser/media_galleries/media_galleries_histograms.h"
 #include "chrome/browser/media_galleries/media_galleries_preferences_factory.h"
@@ skipping 853 matching lines @@
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   auto extension_hosts_it = extension_hosts_map_.find(profile);
   DCHECK(extension_hosts_it != extension_hosts_map_.end());
   extension_hosts_map_.erase(extension_hosts_it);
 
   auto profile_subscription_it = profile_subscription_map_.find(profile);
   DCHECK(profile_subscription_it != profile_subscription_map_.end());
   profile_subscription_map_.erase(profile_subscription_it);
 }