Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/pepper_flash_settings_manager.h

Index: chrome/browser/pepper_flash_settings_manager.h
diff --git a/chrome/browser/pepper_flash_settings_manager.h b/chrome/browser/pepper_flash_settings_manager.h
index 3fd242ba611f370621fb0a49341bac46d488b592..4ff992e9ca13319b9c87668c150f2ab1322220a6 100644
--- a/chrome/browser/pepper_flash_settings_manager.h
+++ b/chrome/browser/pepper_flash_settings_manager.h
@@ -12,7 +12,7 @@
 #include "ppapi/shared_impl/ppp_flash_browser_operations_shared.h"
 
 class PluginPrefs;
-class PrefService;
+class PrefServiceSyncable;
 
 namespace content {
 class BrowserContext;
@@ -62,7 +62,7 @@ class PepperFlashSettingsManager {
   static bool IsPepperFlashInUse(PluginPrefs* plugin_prefs,
                                  webkit::WebPluginInfo* plugin_info);
 
-  static void RegisterUserPrefs(PrefService* prefs);
+  static void RegisterUserPrefs(PrefServiceSyncable* prefs);
 
   // Requests to deauthorize content licenses.
   // Client::OnDeauthorizeContentLicensesCompleted() will be called when the