Clean-up inline members of nested classes (webkit/)

webkit/fileapi/file_system_file_util.h

Index: webkit/fileapi/file_system_file_util.h
diff --git a/webkit/fileapi/file_system_file_util.h b/webkit/fileapi/file_system_file_util.h
index 8205dfd5148736c6d511eddef34a4f7587bf7c4d..26b98dd3894f192e156682e2ab492654df1f8c1e 100644
--- a/webkit/fileapi/file_system_file_util.h
+++ b/webkit/fileapi/file_system_file_util.h
@@ -61,10 +61,10 @@ class FILEAPI_EXPORT FileSystemFileUtil {
   };
 
   class EmptyFileEnumerator : public AbstractFileEnumerator {
-    virtual FilePath Next() OVERRIDE { return FilePath(); }
-    virtual int64 Size() OVERRIDE { return 0; }
-    virtual base::Time LastModifiedTime() OVERRIDE { return base::Time(); }
-    virtual bool IsDirectory() OVERRIDE { return false; }
+    virtual FilePath Next() OVERRIDE;
+    virtual int64 Size() OVERRIDE;
+    virtual base::Time LastModifiedTime() OVERRIDE;
+    virtual bool IsDirectory() OVERRIDE;
   };
 
   virtual ~FileSystemFileUtil() {}