Add support for autofilling radio buttons and checkboxes.

chrome/browser/autofill/autofill_scanner.h

Index: chrome/browser/autofill/autofill_scanner.h
diff --git a/chrome/browser/autofill/autofill_scanner.h b/chrome/browser/autofill/autofill_scanner.h
index 186e864deaa4a6f1433d216629c4a8f5f70ecb83..4b4644706f83266c9dcca2260c6ee0108db4507c 100644
--- a/chrome/browser/autofill/autofill_scanner.h
+++ b/chrome/browser/autofill/autofill_scanner.h
@@ -13,6 +13,9 @@
 class AutofillField;
 
 // A helper class for parsing a stream of |AutofillField|'s with lookahead.
+// Ignores checkable AutofillFields as they interfere when parsers assume
+// correct context (Eg., while parsing address, "Is PO box" checkbox
+// interferes with correctly understanding ADDRESS_LINE2).

[Ilya Sherman, 2012/12/15 01:08:36]

Rather than changing the scanner class, please change
FormField::ParseFormFields() to drop all checkboxes and radio buttons prior to
parsing.

[Raman Kakilate, 2012/12/17 20:11:01]

Done.

 class AutofillScanner {
  public:
   explicit AutofillScanner(const std::vector<const AutofillField*>& fields);
@@ -23,10 +26,10 @@ class AutofillScanner {
 
   // Returns the current field in the stream, or |NULL| if there are no more
   // fields in the stream.
-  const AutofillField* Cursor() const;
+  const AutofillField* Cursor();
 
   // Returns |true| if the cursor has reached the end of the stream.
-  bool IsEnd() const;
+  bool IsEnd();
 
   // Restores the most recently saved cursor. See also |SaveCursor()|.
   void Rewind();
@@ -51,6 +54,9 @@ class AutofillScanner {
   // The past-the-end pointer for the stream.
   const std::vector<const AutofillField*>::const_iterator end_;
 
+  // Skip all clickable fields.
+  void SkipClickables();
+
   DISALLOW_COPY_AND_ASSIGN(AutofillScanner);
 };