Modify the base::JSONReader interface to take a set of options rather than a boolean flag.

chrome/browser/spellchecker/spelling_service_client.cc

Index: chrome/browser/spellchecker/spelling_service_client.cc
diff --git a/chrome/browser/spellchecker/spelling_service_client.cc b/chrome/browser/spellchecker/spelling_service_client.cc
index 85bbc47feb9f5d0b894a13455113d17ec34c486c..1b406dd32e067ea9867724b4d27cf96da45c6d7e 100644
--- a/chrome/browser/spellchecker/spelling_service_client.cc
+++ b/chrome/browser/spellchecker/spelling_service_client.cc
@@ -153,7 +153,8 @@ bool SpellingServiceClient::ParseResponse(
   //   }
   // }
   scoped_ptr<DictionaryValue> value(
-      static_cast<DictionaryValue*>(base::JSONReader::Read(data, true)));
+      static_cast<DictionaryValue*>(
+          base::JSONReader::Read(data, base::JSON_ALLOW_TRAILING_COMMAS)));
   if (!value.get() || !value->IsType(base::Value::TYPE_DICTIONARY))
     return false;