Refactor pref code out of ProfileImpl.

chrome/browser/prefs/chrome_pref_service_factory.h

Index: chrome/browser/prefs/chrome_pref_service_factory.h
diff --git a/chrome/browser/prefs/chrome_pref_service_factory.h b/chrome/browser/prefs/chrome_pref_service_factory.h
index c8a119d09a9225429307d10d7421379b38ad362c..371e60cadec806f50deb5fa457bcf8b3b919e247 100644
--- a/chrome/browser/prefs/chrome_pref_service_factory.h
+++ b/chrome/browser/prefs/chrome_pref_service_factory.h
@@ -57,17 +57,22 @@ scoped_ptr<PrefServiceSyncable> CreateProfilePrefs(
     base::SequencedTaskRunner* pref_io_task_runner,
     policy::PolicyService* policy_service,
     ManagedUserSettingsService* managed_user_settings,
-    scoped_ptr<PrefHashStore> pref_hash_store,
     const scoped_refptr<PrefStore>& extension_prefs,
     const scoped_refptr<user_prefs::PrefRegistrySyncable>& pref_registry,
     bool async);
 
-// Initializes a preference hash store for the profile preferences file at
-// |pref_filename| without actually loading the profile.
-void InitializeHashStoreForPrefFile(
-    const base::FilePath& pref_filename,
-    base::SequencedTaskRunner* pref_io_task_runner,
-    scoped_ptr<PrefHashStore> pref_hash_store);
+// Schedules verification of the path resolution of the preferences file under
+// |profile_path|.
+void SchedulePrefsFilePathVerification(const base::FilePath& profile_path);
+
+// Initializes the PrefHashStore for the profile preferences file under
+// |profile_path| without actually loading that profile.
+void InitializePrefHashStoreIfRequired(
+    const base::FilePath& profile_path);
+
+// Resets the contents of the preference hash store for the profile at
+// |profile_path|.
+void ResetPrefHashStore(const base::FilePath& profile_path);
 
 }  // namespace chrome_prefs