Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/plugins/plugin_finder.h

Index: chrome/browser/plugins/plugin_finder.h
diff --git a/chrome/browser/plugins/plugin_finder.h b/chrome/browser/plugins/plugin_finder.h
index a8a07f604c896f9a5110909d670e8097d8fd58b5..0b6d1dee162bd09d32cd52044fb795c2577a8dfd 100644
--- a/chrome/browser/plugins/plugin_finder.h
+++ b/chrome/browser/plugins/plugin_finder.h
@@ -22,7 +22,7 @@ class DictionaryValue;
 
 class GURL;
 class PluginMetadata;
-class PrefService;
+class PrefServiceSimple;
 
 #if defined(ENABLE_PLUGIN_INSTALLATION)
 class PluginInstaller;
@@ -33,7 +33,7 @@ class PluginInstaller;
 // After that it can be safely used on any other thread.
 class PluginFinder {
  public:
-  static void RegisterPrefs(PrefService* local_state);
+  static void RegisterPrefs(PrefServiceSimple* local_state);
 
   static PluginFinder* GetInstance();