[iOS] Upstream autofill component code

components/autofill/content/renderer/form_autofill_util.h

 // 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.
 
 #ifndef COMPONENTS_AUTOFILL_CONTENT_RENDERER_FORM_AUTOFILL_UTIL_H_
 #define COMPONENTS_AUTOFILL_CONTENT_RENDERER_FORM_AUTOFILL_UTIL_H_
 
 #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"
 
 class GURL;
 
 namespace blink {
 class WebDocument;
 class WebElement;
 class WebFormElement;
 class WebFormControlElement;
 class WebFrame;
 class WebInputElement;
 class WebNode;
 }
 
 namespace autofill {
 
 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,
   EXTRACT_VALUE       = 1 << 0,  // Extract value from WebFormControlElement.
   EXTRACT_OPTION_TEXT = 1 << 1,  // Extract option text from
                                  // WebFormSelectElement. Only valid when
                                  // |EXTRACT_VALUE| is set.
                                  // This is used for form submission where
                                  // human readable value is captured.
   EXTRACT_OPTIONS     = 1 << 2,  // Extract options from
@@ skipping 135 matching lines @@
 // This function checks whether the children of |element|
 // are of the type <script>, <meta>, or <title>.
 bool IsWebElementEmpty(const blink::WebElement& element);
 
 // Return a gfx::RectF that is the bounding box for |element| scaled by |scale|.
 gfx::RectF GetScaledBoundingBox(float scale, blink::WebElement* element);
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_FORM_AUTOFILL_UTIL_H_