Revert "In components/autofill, move common/ to shared/"

components/autofill/shared/web_element_descriptor.cc

Index: components/autofill/shared/web_element_descriptor.cc
diff --git a/components/autofill/shared/web_element_descriptor.cc b/components/autofill/shared/web_element_descriptor.cc
deleted file mode 100644
index fdc1dcbaf62945991ebdf25c81fc18a9f99be14b..0000000000000000000000000000000000000000
--- a/components/autofill/shared/web_element_descriptor.cc
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "components/autofill/shared/web_element_descriptor.h"
-
-namespace autofill {
-
-autofill::WebElementDescriptor::WebElementDescriptor()
-  : retrieval_method(NONE) {}
-
-}  // namespace autofill