Revert of Delete base/prefs and update callers to use components.

components/filesystem/public/cpp/prefs/filesystem_json_pref_store.h

Index: components/filesystem/public/cpp/prefs/filesystem_json_pref_store.h
diff --git a/components/filesystem/public/cpp/prefs/filesystem_json_pref_store.h b/components/filesystem/public/cpp/prefs/filesystem_json_pref_store.h
index d75fcd671bfad4d16030a0a66904756ff70d765b..75cdead7ad910385570cdd5655cce2cc5f7d6076 100644
--- a/components/filesystem/public/cpp/prefs/filesystem_json_pref_store.h
+++ b/components/filesystem/public/cpp/prefs/filesystem_json_pref_store.h
@@ -18,14 +18,14 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
+#include "base/prefs/base_prefs_export.h"
+#include "base/prefs/persistent_pref_store.h"
+#include "base/prefs/pref_filter.h"
 #include "base/threading/non_thread_safe.h"
 #include "components/filesystem/public/interfaces/directory.mojom.h"
 #include "components/filesystem/public/interfaces/file.mojom.h"
 #include "components/filesystem/public/interfaces/file_system.mojom.h"
 #include "components/filesystem/public/interfaces/types.mojom.h"
-#include "components/prefs/base_prefs_export.h"
-#include "components/prefs/persistent_pref_store.h"
-#include "components/prefs/pref_filter.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
 class PrefFilter;
@@ -45,9 +45,9 @@
 // filesystem. Unlike base::JsonPrefStore, this class can safely be used inside
 // a sandboxed process.
 //
-// In the long run, we'll want to replace the current PrefService code with
-// something very different, especially since this component hard punts on all
-// the hard things that the preference service does (enterprise management,
+// In the long run, we'll want to replace the current base::PrefService code
+// with something very different, especially since this component hard punts on
+// all the hard things that the preference service does (enterprise management,
 // parental controls, extension integration, etc.) and its interface is really
 // not optimal for a mojoified world--there are a few places where we assume
 // that writing to disk is synchronous...but it no longer is!