Add exports needed for glue to build as a component.

webkit/glue/form_data_predictions.h

 // Copyright (c) 2011 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.
 
 #ifndef WEBKIT_GLUE_FORM_DATA_PREDICTIONS_H__
 #define WEBKIT_GLUE_FORM_DATA_PREDICTIONS_H__
 
 #include <string>
 #include <vector>
 
 #include "webkit/glue/form_data.h"
 #include "webkit/glue/form_field_predictions.h"
+#include "webkit/glue/webkit_glue_export.h"
 
 namespace webkit_glue {
 
 // Holds information about a form to be filled and/or submitted.
-struct FormDataPredictions {
+struct WEBKIT_GLUE_EXPORT FormDataPredictions {
   // Data for this form.
   FormData data;
   // The form signature for communication with the crowdsourcing server.
   std::string signature;
   // The experiment id for the server predictions.
   std::string experiment_id;
   // The form fields and their predicted field types.
   std::vector<FormFieldPredictions> fields;
 
   FormDataPredictions();
   FormDataPredictions(const FormDataPredictions& other);
   ~FormDataPredictions();
 };
 
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_GLUE_FORM_DATA_PREDICTIONS_H__