[Password Generation] Sends the flag whether a field has nonempty user input

components/autofill/core/common/form_field_data.h

Index: components/autofill/core/common/form_field_data.h
diff --git a/components/autofill/core/common/form_field_data.h b/components/autofill/core/common/form_field_data.h
index e01fdd1f119f96351e46c2d454fb551f2a811439..7a35a6ecf743acfc746486193c3b83db572fbbcf 100644
--- a/components/autofill/core/common/form_field_data.h
+++ b/components/autofill/core/common/form_field_data.h
@@ -19,6 +19,19 @@ class PickleIterator;
 
 namespace autofill {
 
+// The flags describing form field properties.
+enum FieldPropertiesFlags {
+  USER_TYPED = 1u << 0,
+  AUTOFILLED = 1u << 1,
+  HAD_FOCUS = 1u << 2,
+  // Use this flag, if some error occurred in flags processing.
+  ERROR_OCCURRED = 1u << 3
+};
+
+// FieldPropertiesMask is used to contain combinations of FieldPropertiesFlags
+// values.
+typedef uint32_t FieldPropertiesMask;
+
 // Stores information about a field in a form.
 struct FormFieldData {
   // Copied to components/autofill/ios/browser/resources/autofill_controller.js.
@@ -71,6 +84,7 @@ struct FormFieldData {
   bool should_autocomplete;
   RoleAttribute role;
   base::i18n::TextDirection text_direction;
+  FieldPropertiesMask properties_mask;
 
   // For the HTML snippet |<option value="US">United States</option>|, the
   // value is "US" and the contents are "United States".
@@ -108,6 +122,7 @@ void SetCheckStatus(FormFieldData* form_field_data,
     EXPECT_EQ(expected.css_classes, actual.css_classes);                       \
     EXPECT_EQ(expected.is_autofilled, actual.is_autofilled);                   \
     EXPECT_EQ(expected.check_status, actual.check_status);                     \
+    EXPECT_EQ(expected.properties_mask, actual.properties_mask);               \
   } while (0)
 
 }  // namespace autofill