Correct const accessors in base/values.(h|cc)

chrome/browser/profiles/profile_info_cache.cc

Index: chrome/browser/profiles/profile_info_cache.cc
diff --git a/chrome/browser/profiles/profile_info_cache.cc b/chrome/browser/profiles/profile_info_cache.cc
index 347254da18483498814d158324c918e98627485c..5ea0459421a6f6feb4a01ff9b905996f002d8925 100644
--- a/chrome/browser/profiles/profile_info_cache.cc
+++ b/chrome/browser/profiles/profile_info_cache.cc
@@ -175,7 +175,7 @@ ProfileInfoCache::ProfileInfoCache(PrefService* prefs,
   for (DictionaryValue::key_iterator it = cache->begin_keys();
        it != cache->end_keys(); ++it) {
     std::string key = *it;
-    DictionaryValue* info = NULL;
+    const DictionaryValue* info = NULL;
     cache->GetDictionary(key, &info);
     string16 name;
     info->GetString(kNameKey, &name);
@@ -713,7 +713,7 @@ const DictionaryValue* ProfileInfoCache::GetInfoForProfileAtIndex(
   DCHECK_LT(index, GetNumberOfProfiles());
   const DictionaryValue* cache =
       prefs_->GetDictionary(prefs::kProfileInfoCache);
-  DictionaryValue* info = NULL;
+  const DictionaryValue* info = NULL;
   cache->GetDictionary(sorted_keys_[index], &info);
   return info;
 }
@@ -782,7 +782,7 @@ std::vector<string16> ProfileInfoCache::GetProfileNames() {
   for (base::DictionaryValue::key_iterator it = cache->begin_keys();
        it != cache->end_keys();
        ++it) {
-    base::DictionaryValue* info = NULL;
+    const base::DictionaryValue* info = NULL;
     cache->GetDictionary(*it, &info);
     info->GetString(kNameKey, &name);
     names.push_back(name);