Correct const accessors in base/values.(h|cc), Part II (ListValue)

chrome/browser/printing/print_job_worker.cc

Index: chrome/browser/printing/print_job_worker.cc
diff --git a/chrome/browser/printing/print_job_worker.cc b/chrome/browser/printing/print_job_worker.cc
index 930c3f35669f3dcb2fcff6b4147fa827fc68253d..90ea9616adc64423daad18b6437227a687a90ab0 100644
--- a/chrome/browser/printing/print_job_worker.cc
+++ b/chrome/browser/printing/print_job_worker.cc
@@ -125,7 +125,7 @@ void PrintJobWorker::UpdatePrintSettings(
   const ListValue* page_range_array;
   if (new_settings->GetList(kSettingPageRange, &page_range_array)) {
     for (size_t index = 0; index < page_range_array->GetSize(); ++index) {
-      DictionaryValue* dict;
+      const DictionaryValue* dict;
       if (!page_range_array->GetDictionary(index, &dict))
         continue;