Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/media/media_capture_devices_dispatcher.cc

Index: chrome/browser/media/media_capture_devices_dispatcher.cc
diff --git a/chrome/browser/media/media_capture_devices_dispatcher.cc b/chrome/browser/media/media_capture_devices_dispatcher.cc
index e31e09db1a89e9fdafdd761519b1116617d837e5..91923c6cf012d022b5329c03b1dd148e8bd1a352 100644
--- a/chrome/browser/media/media_capture_devices_dispatcher.cc
+++ b/chrome/browser/media/media_capture_devices_dispatcher.cc
@@ -18,16 +18,17 @@ MediaCaptureDevicesDispatcher::MediaCaptureDevicesDispatcher()
 
 MediaCaptureDevicesDispatcher::~MediaCaptureDevicesDispatcher() {}
 
-void MediaCaptureDevicesDispatcher::RegisterUserPrefs(PrefService* user_prefs) {
+void MediaCaptureDevicesDispatcher::RegisterUserPrefs(
+    PrefServiceSyncable* user_prefs) {
   if (!user_prefs->FindPreference(prefs::kDefaultAudioCaptureDevice)) {
     user_prefs->RegisterStringPref(prefs::kDefaultAudioCaptureDevice,
                                    std::string(),
-                                   PrefService::UNSYNCABLE_PREF);
+                                   PrefServiceSyncable::UNSYNCABLE_PREF);
   }
   if (!user_prefs->FindPreference(prefs::kDefaultVideoCaptureDevice)) {
     user_prefs->RegisterStringPref(prefs::kDefaultVideoCaptureDevice,
                                    std::string(),
-                                   PrefService::UNSYNCABLE_PREF);
+                                   PrefServiceSyncable::UNSYNCABLE_PREF);
   }
 }