Update ChannelReader to use AttachmentBroker.

ipc/ipc_channel_win.cc

Index: ipc/ipc_channel_win.cc
diff --git a/ipc/ipc_channel_win.cc b/ipc/ipc_channel_win.cc
index 6f41fd647cc9a7964b30288977a3ece891961ea8..29bcbe74773c72a0c396bb21cca7b3d5e517d3a1 100644
--- a/ipc/ipc_channel_win.cc
+++ b/ipc/ipc_channel_win.cc
@@ -173,13 +173,17 @@ ChannelWin::ReadState ChannelWin::ReadData(
   return READ_PENDING;
 }
 
-bool ChannelWin::WillDispatchInputMessage(Message* msg) {
+bool ChannelWin::ShouldDispatchInputMessage(Message* msg) {
   // Make sure we get a hello when client validation is required.
   if (validate_client_)
     return IsHelloMessage(*msg);
   return true;
 }
 
+bool ChannelWin::GetNonBrokeredAttachments(Message* msg) {
+  return true;
+}
+
 void ChannelWin::HandleInternalMessage(const Message& msg) {
   DCHECK_EQ(msg.type(), static_cast<unsigned>(Channel::HELLO_MESSAGE_TYPE));
   // The hello message contains one parameter containing the PID.