Remove dependency of PrefSyncableService on Profile.

chrome/browser/prefs/pref_service_syncable.cc

Index: chrome/browser/prefs/pref_service_syncable.cc
diff --git a/chrome/browser/prefs/pref_service_syncable.cc b/chrome/browser/prefs/pref_service_syncable.cc
index 32d4d3e234a86f25a3104e49d3a78d4d4f5f2454..c6cf8badf58bce2186da703230520d09dbe94503 100644
--- a/chrome/browser/prefs/pref_service_syncable.cc
+++ b/chrome/browser/prefs/pref_service_syncable.cc
@@ -15,21 +15,9 @@
 #include "base/value_conversions.h"
 #include "chrome/browser/prefs/pref_model_associator.h"
 #include "chrome/browser/prefs/pref_service_syncable_observer.h"
-#include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/prefs/prefs_tab_helper.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 
-// static
-PrefServiceSyncable* PrefServiceSyncable::FromProfile(Profile* profile) {
-  return static_cast<PrefServiceSyncable*>(profile->GetPrefs());
-}
-
-// static
-PrefServiceSyncable* PrefServiceSyncable::IncognitoFromProfile(
-    Profile* profile) {
-  return static_cast<PrefServiceSyncable*>(profile->GetOffTheRecordPrefs());
-}
-
 PrefServiceSyncable::PrefServiceSyncable(
     PrefNotifierImpl* pref_notifier,
     PrefValueStore* pref_value_store,