Optionally have MessagePort pass data as base::Value, part 1.

content/browser/message_port_service.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/message_port_service.h"
 
 #include "content/common/message_port_messages.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/message_port_delegate.h"
 
@@ skipping 115 matching lines @@
   }
 
   DCHECK(message_ports_[remote_message_port_id].entangled_message_port_id ==
       MSG_ROUTING_NONE);
   message_ports_[remote_message_port_id].entangled_message_port_id =
       local_message_port_id;
 }
 
 void MessagePortService::PostMessage(
     int sender_message_port_id,
-    const base::string16& message,
+    const MessagePortMessage& message,
     const std::vector<int>& sent_message_port_ids) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   if (!message_ports_.count(sender_message_port_id)) {
     NOTREACHED();
     return;
   }
 
   int entangled_message_port_id =
       message_ports_[sender_message_port_id].entangled_message_port_id;
   if (entangled_message_port_id == MSG_ROUTING_NONE)
     return;  // Process could have crashed.
 
   if (!message_ports_.count(entangled_message_port_id)) {
     NOTREACHED();
     return;
   }
 
   PostMessageTo(entangled_message_port_id, message, sent_message_port_ids);
 }
 
 void MessagePortService::PostMessageTo(
     int message_port_id,
-    const base::string16& message,
+    const MessagePortMessage& message,
     const std::vector<int>& sent_message_port_ids) {
   if (!message_ports_.count(message_port_id)) {
     NOTREACHED();
     return;
   }
   for (size_t i = 0; i < sent_message_port_ids.size(); ++i) {
     if (!message_ports_.count(sent_message_port_ids[i])) {
       NOTREACHED();
       return;
     }
@@ skipping 148 matching lines @@
     // Do the disentanglement (and be paranoid about the other side existing
     // just in case something unusual happened during entanglement).
     if (message_ports_.count(entangled_id)) {
       message_ports_[entangled_id].entangled_message_port_id = MSG_ROUTING_NONE;
     }
   }
   message_ports_.erase(erase_item);
 }
 
 }  // namespace content