[Autofill] Add Chrome flag that annotates web forms with form and field signatures

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 <stddef.h>
 
 #include <vector>
@@ skipping 109 matching lines @@
 // Returns true if |element| is a textarea element.
 bool IsTextAreaElement(const blink::WebFormControlElement& element);
 
 // Returns true if |element| is a checkbox or a radio button element.
 bool IsCheckableElement(const blink::WebInputElement* element);
 
 // Returns true if |element| is one of the input element types that can be
 // autofilled. {Text, Radiobutton, Checkbox}.
 bool IsAutofillableInputElement(const blink::WebInputElement* element);
 
+// Returns true if |element| is one of the element types that can be autofilled.
+// {Text, Radiobutton, Checkbox, Select, TextArea}.
+bool IsAutofillableElement(const blink::WebFormControlElement& element);
+
 // True if this node takes up space in the layout, ie. this node or a descendant
 // has a non-empty bounding bounding client rect.
 //
 // TODO(esprehn): This isn't really about visibility, it's about the size.
 // We should remove this function and just call hasNonEmptyLayoutSize()
 // directly.
 bool IsWebNodeVisible(const blink::WebNode& node);
 
 // Returns the form's |name| attribute if non-empty; otherwise the form's |id|
 // attribute.
@@ skipping 128 matching lines @@
 // |input_element|. Note that |user_input| cannot be easily derived from
 // |input_element| by calling value(), because of http://crbug.com/507714.
 void PreviewSuggestion(const base::string16& suggestion,
                        const base::string16& user_input,
                        blink::WebFormControlElement* input_element);
 
 }  // namespace form_util
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_FORM_AUTOFILL_UTIL_H_