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

chrome/installer/util/master_preferences.cc

Index: chrome/installer/util/master_preferences.cc
diff --git a/chrome/installer/util/master_preferences.cc b/chrome/installer/util/master_preferences.cc
index 24592c60f333255e4e1bb6e5641133232f645c77..21c05b181024c35732553a66cca127224535a984 100644
--- a/chrome/installer/util/master_preferences.cc
+++ b/chrome/installer/util/master_preferences.cc
@@ -43,7 +43,7 @@ std::vector<GURL> GetNamedList(const char* name,
   if (!prefs->GetList(name, &value_list))
     return list;
   for (size_t i = 0; i < value_list->GetSize(); ++i) {
-    Value* entry;
+    const Value* entry;
     GURL gurl_entry;
     if (!value_list->Get(i, &entry) || !GetGURLFromValue(entry, &gurl_entry)) {
       NOTREACHED();