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

chrome/common/extensions/extension.cc

Index: chrome/common/extensions/extension.cc
diff --git a/chrome/common/extensions/extension.cc b/chrome/common/extensions/extension.cc
index 9177db8af4a9ba2412d5dc3d953bea9ccb36d709..3323f1bfcf9d84548e24de34012d2b1a6ab4c792 100644
--- a/chrome/common/extensions/extension.cc
+++ b/chrome/common/extensions/extension.cc
@@ -728,7 +728,7 @@ bool Extension::LoadUserScriptHelper(const DictionaryValue* content_script,
   if (js) {
     for (size_t script_index = 0; script_index < js->GetSize();
          ++script_index) {
-      Value* value;
+      const Value* value;
       std::string relative;
       if (!js->Get(script_index, &value) || !value->GetAsString(&relative)) {
         *error = ExtensionErrorUtils::FormatErrorMessageUTF16(
@@ -747,7 +747,7 @@ bool Extension::LoadUserScriptHelper(const DictionaryValue* content_script,
   if (css) {
     for (size_t script_index = 0; script_index < css->GetSize();
          ++script_index) {
-      Value* value;
+      const Value* value;
       std::string relative;
       if (!css->Get(script_index, &value) || !value->GetAsString(&relative)) {
         *error = ExtensionErrorUtils::FormatErrorMessageUTF16(