Extension Settings API: move the API functions into an object SettingsNamepace,

chrome/browser/extensions/settings/settings_leveldb_storage.h

Index: chrome/browser/extensions/settings/settings_leveldb_storage.h
diff --git a/chrome/browser/extensions/settings/settings_leveldb_storage.h b/chrome/browser/extensions/settings/settings_leveldb_storage.h
index 96cff0569aea5f34d90f5b212a448e3150f6f944..390bc614d9aa6ca60c95b40782f997f3cd9dd0d3 100644
--- a/chrome/browser/extensions/settings/settings_leveldb_storage.h
+++ b/chrome/browser/extensions/settings/settings_leveldb_storage.h
@@ -29,15 +29,13 @@ class SettingsLeveldbStorage : public SettingsStorage {
   // Factory for creating SettingsLeveldbStorage instances.
   class Factory : public SettingsStorageFactory {
    public:
-    Factory() {}
-    virtual ~Factory() {}
-
-    // SettingsStorageFactory implementation.
     virtual SettingsStorage* Create(
-        const FilePath& base_path, const std::string& extension_id) OVERRIDE;
+        const FilePath& base_path,
+        const std::string& extension_id) OVERRIDE;
 
    private:
-    DISALLOW_COPY_AND_ASSIGN(Factory);
+    // SettingsStorageFactory is refcounted.
+    virtual ~Factory() {}
   };
 
   // Must be deleted on the FILE thread.