[Autofill] Determine Popup RTLness from page

components/autofill/common/form_field_data.h

Index: components/autofill/common/form_field_data.h
diff --git a/components/autofill/common/form_field_data.h b/components/autofill/common/form_field_data.h
index e1272cac0785931c2e204128d717c320115e3d54..b026eab49d2c65840a2c79dff18dfdd9feb0401f 100644
--- a/components/autofill/common/form_field_data.h
+++ b/components/autofill/common/form_field_data.h
@@ -7,6 +7,7 @@
 
 #include <vector>
 
+#include "base/i18n/rtl.h"
 #include "base/string16.h"
 
 namespace autofill {
@@ -36,6 +37,7 @@ struct FormFieldData {
   bool is_checkable;
   bool is_focusable;
   bool should_autocomplete;
+  base::i18n::TextDirection text_direction;
 
   // For the HTML snippet |<option value="US">United States</option>|, the
   // value is "US" and the contents are "United States".