| Index: ipc/attachment_broker_messages.h | 
| diff --git a/ipc/attachment_broker_messages.h b/ipc/attachment_broker_messages.h | 
| index 71b89864b06e83784df6b25000ce38c10fdb1b18..066e19c986a9f99547356315b865b4f1ac239c78 100644 | 
| --- a/ipc/attachment_broker_messages.h | 
| +++ b/ipc/attachment_broker_messages.h | 
| @@ -51,10 +51,7 @@ IPC_MESSAGE_CONTROL1( | 
| // Sent from a non-broker to a broker to request the duplication of a HANDLE | 
| // into a different process (possibly the broker process, or even the original | 
| // process). | 
| -// TODO(erikchen): https://code.google.com/p/chromium/issues/detail?id=513431 | 
| -// *sender_pid* should be unforgeably generated by the receiving channel. | 
| -IPC_MESSAGE_CONTROL2( | 
| +IPC_MESSAGE_CONTROL1( | 
| AttachmentBrokerMsg_DuplicateWinHandle, | 
| -    IPC::internal::HandleAttachmentWin::WireFormat /* wire_format */, | 
| -    base::ProcessId /* sender_pid */) | 
| +    IPC::internal::HandleAttachmentWin::WireFormat /* wire_format */) | 
| #endif  // defined(OS_WIN) | 
|  |