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

components/autofill/shared/autofill_constants.h

Index: components/autofill/shared/autofill_constants.h
diff --git a/components/autofill/shared/autofill_constants.h b/components/autofill/shared/autofill_constants.h
deleted file mode 100644
index 2185cc80d82a5cd4d7cb6558b9c1822fe81f9f07..0000000000000000000000000000000000000000
--- a/components/autofill/shared/autofill_constants.h
+++ /dev/null
@@ -1,25 +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.
-
-// Contains constants specific to the Autofill component.
-
-#ifndef COMPONENTS_AUTOFILL_SHARED_AUTOFILL_CONSTANTS_H_
-#define COMPONENTS_AUTOFILL_SHARED_AUTOFILL_CONSTANTS_H_
-
-#include <stddef.h>         // For size_t
-
-namespace autofill {
-
-// Help URL for the Autofill dialog.
-extern const char kHelpURL[];
-
-// The number of fields required by Autofill.  Ideally we could send the forms
-// to Autofill no matter how many fields are in the forms; however, finding the
-// label for each field is a costly operation and we can't spare the cycles if
-// it's not necessary.
-extern const size_t kRequiredAutofillFields;
-
-}  // namespace autofill
-
-#endif  // COMPONENTS_AUTOFILL_SHARED_AUTOFILL_CONSTANTS_H_