[iOS] Upstream autofill component code

components/autofill/content/renderer/form_autofill_util.h

Index: components/autofill/content/renderer/form_autofill_util.h
diff --git a/components/autofill/content/renderer/form_autofill_util.h b/components/autofill/content/renderer/form_autofill_util.h
index b3a299df1aeed4b62bf5d667346539e6ea07b507..a44a00afacf72d00fc948788172d8ee4fbf8d761 100644
--- a/components/autofill/content/renderer/form_autofill_util.h
+++ b/components/autofill/content/renderer/form_autofill_util.h
@@ -8,6 +8,7 @@
 #include <vector>
 
 #include "base/strings/string16.h"
+#include "components/autofill/core/common/autofill_constants.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
 #include "third_party/WebKit/public/web/WebElementCollection.h"
 #include "ui/gfx/geometry/rect.h"
@@ -30,12 +31,6 @@ struct FormData;
 struct FormFieldData;
 struct WebElementDescriptor;
 
-// A bit field mask for form or form element requirements.
-enum RequirementsMask {
-  REQUIRE_NONE         = 0,  // No requirements.
-  REQUIRE_AUTOCOMPLETE = 1,  // Require that autocomplete != off.
-};
-
 // A bit field mask to extract data from WebFormControlElement.
 enum ExtractMask {
   EXTRACT_NONE        = 0,