Add support for autofilling radio buttons and checkboxes.

chrome/browser/autofill/autofill_manager.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/autofill/autofill_manager.h"
 
 #include <stddef.h>
 
 #include <limits>
 #include <map>
@@ skipping 630 matching lines @@
       if (result.fields[i] == field ||
           field_group_type == initiating_group_type) {
         use_variant = variant;
       }
       form_group->FillFormField(*cached_field,
                                 use_variant,
                                 &result.fields[i]);
       // Mark the cached field as autofilled, so that we can detect when a user
       // edits an autofilled field (for metrics).
       form_structure->field(i)->is_autofilled = true;
+    } else {
+      // Check if the field type is one with default value.
+      if (cached_field->type() == FIELD_WITH_DEFAULT_VALUE &&
+          cached_field->is_checkable) {
+        string16 default_value = ASCIIToUTF16(cached_field->default_value());
+        result.fields[i].is_checked = (default_value == result.fields[i].value);
+        form_structure->field(i)->is_autofilled = true;
+      }
     }
   }
 
   autofilled_form_signatures_.push_front(form_structure->FormSignature());
   // Only remember the last few forms that we've seen, both to avoid false
   // positives and to avoid wasting memory.
   if (autofilled_form_signatures_.size() > kMaxRecentFormSignaturesToRemember)
     autofilled_form_signatures_.pop_back();
 
   host->Send(new AutofillMsg_FormDataFilled(
@@ skipping 653 matching lines @@
   *profile_guid = IDToGUID(profile_id);
 }
 
 void AutofillManager::UpdateInitialInteractionTimestamp(
     const TimeTicks& interaction_timestamp) {
   if (initial_interaction_timestamp_.is_null() ||
       interaction_timestamp < initial_interaction_timestamp_) {
     initial_interaction_timestamp_ = interaction_timestamp;
   }
 }