Move preference MACs to the protected preference stores.

chrome/browser/prefs/tracked/pref_service_hash_store_contents.h

Index: chrome/browser/prefs/tracked/pref_service_hash_store_contents.h
diff --git a/chrome/browser/prefs/tracked/pref_service_hash_store_contents.h b/chrome/browser/prefs/tracked/pref_service_hash_store_contents.h
index 99fb259672f5311c166bfd7d813fed46b4a7d746..687c394d27459bc88ad5576a9f17a04adfcc2b16 100644
--- a/chrome/browser/prefs/tracked/pref_service_hash_store_contents.h
+++ b/chrome/browser/prefs/tracked/pref_service_hash_store_contents.h
@@ -45,6 +45,8 @@ class PrefServiceHashStoreContents : public HashStoreContents {
   // Deletes stored hashes for all profiles from |pref_service|.
   static void ResetAllPrefHashStores(PrefService* pref_service);
 
+  virtual void CommitPendingWrite();
+
   // HashStoreContents implementation
   virtual std::string hash_store_id() const OVERRIDE;
   virtual void Reset() OVERRIDE;
@@ -53,7 +55,6 @@ class PrefServiceHashStoreContents : public HashStoreContents {
   virtual scoped_ptr<MutableDictionary> GetMutableContents() OVERRIDE;
   virtual std::string GetSuperMac() const OVERRIDE;
   virtual void SetSuperMac(const std::string& super_mac) OVERRIDE;
-  virtual void CommitPendingWrite() OVERRIDE;
 
  private:
   const std::string hash_store_id_;