AutoFill forms. We do this by responding to a message from WebKit which send...

webkit/glue/form_field_values.cc

 // Copyright (c) 2009 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 "base/basictypes.h"
 #include "base/logging.h"
 #include "base/string16.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFormElement.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebInputElement.h"
@@ skipping 24 matching lines @@
 
   return result;
 }
 
 void FormFieldValues::ExtractFormFieldValues(const WebFormElement& form) {
   WebVector<WebInputElement> input_elements;
   form.getInputElements(input_elements);
 
   for (size_t i = 0; i < input_elements.size(); i++) {
     const WebInputElement& input_element = input_elements[i];
-    if (input_element.isEnabledFormControl())
-      elements.push_back(FormField(input_element));
+    if (input_element.isEnabledFormControl()) {
+      // TODO(jhawkins): Remove this check when we have labels.
+      if (!input_element.nameForAutofill().isEmpty())
+        elements.push_back(FormField(input_element));
+    }
   }
 }
 
 }  // namespace webkit_glue