Autofill: Set requirements for number of recognized fields in an autofillable form

components/autofill/core/browser/form_structure.h

Index: components/autofill/core/browser/form_structure.h
diff --git a/components/autofill/core/browser/form_structure.h b/components/autofill/core/browser/form_structure.h
index e93621012de98cda8af744caa37081fded771b8f..0c19855d98b1d2b66334a40f26836b6a681203b4 100644
--- a/components/autofill/core/browser/form_structure.h
+++ b/components/autofill/core/browser/form_structure.h
@@ -43,7 +43,7 @@ struct FormDataPredictions;
 // in the fields along with additional information needed by Autofill.
 class FormStructure {
  public:
-  FormStructure(const FormData& form);
+  explicit FormStructure(const FormData& form);
   virtual ~FormStructure();
 
   // Runs several heuristics against the form fields to determine their possible
@@ -254,6 +254,9 @@ class FormStructure {
   // True if the form contains at least one password field.
   bool has_password_field_;
 
+  // True if the form is in a <form>.

[Evan Stade, 2015/01/26 17:59:45]

more like is-a form, right?

[Lei Zhang, 2015/01/28 01:37:35]

sure.

+  bool is_in_form_tag_;
+
   DISALLOW_COPY_AND_ASSIGN(FormStructure);
 };