Cleanup: quota::HostQuotaCallback do not need to pass host and type as arguments

webkit/quota/quota_types.h

Index: webkit/quota/quota_types.h
diff --git a/webkit/quota/quota_types.h b/webkit/quota/quota_types.h
index c478c96a214f9b7dc0f3d1c9aae39f0f922adce8..aab070e350c64a9555bfaa556a7885e151408086 100644
--- a/webkit/quota/quota_types.h
+++ b/webkit/quota/quota_types.h
@@ -46,12 +46,9 @@ typedef base::Callback<void(StorageType status,
 typedef base::Callback<void(QuotaStatusCode status,
                             StorageType type,
                             int64 quota)> QuotaCallback;
-// TODO(kinuko,nhiroki): HostUsageCallback could be probably replaced with
-// simple Callback<void(int64)> callback by binding host and type with Bind.
 typedef base::Callback<void(int64 usage)> UsageCallback;
+// TODO(calvinlo): Merge HostQuotaCallback and QuotaCallback
 typedef base::Callback<void(QuotaStatusCode status,
-                            const std::string& host,
-                            StorageType type,
                             int64 quota)> HostQuotaCallback;
 typedef base::Callback<void(QuotaStatusCode, int64)> AvailableSpaceCallback;
 typedef base::Callback<void(QuotaStatusCode)> StatusCallback;