Enable Blink to pass extra Mojo handles across MessagePorts

third_party/WebKit/Source/core/dom/MessagePort.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 68 matching lines @@
   }
   MessagePortChannelArray channels =
       MessagePort::disentanglePorts(scriptState->getExecutionContext(), ports,
                                     exceptionState);
   if (exceptionState.hadException())
     return;
 
   WebString messageString = message->toWireString();
   WebMessagePortChannelArray webChannels =
       toWebMessagePortChannelArray(std::move(channels));
-  m_entangledChannel->postMessage(messageString, std::move(webChannels));
+  WebVector<mojo::ScopedHandle> handles;
+  m_entangledChannel->postMessage(messageString, std::move(webChannels),
+                                  std::move(handles));
 }
 
 // static
 WebMessagePortChannelArray MessagePort::toWebMessagePortChannelArray(
     MessagePortChannelArray channels) {
   WebMessagePortChannelArray webChannels(channels.size());
   for (size_t i = 0; i < channels.size(); ++i)
     webChannels[i] = std::move(channels[i]);
   return webChannels;
 }
@@ skipping 62 matching lines @@
 
 const AtomicString& MessagePort::interfaceName() const {
   return EventTargetNames::MessagePort;
 }
 
 static bool tryGetMessageFrom(WebMessagePortChannel& webChannel,
                               RefPtr<SerializedScriptValue>& message,
                               MessagePortChannelArray& channels) {
   WebString messageString;
   WebMessagePortChannelArray webChannels;
-  if (!webChannel.tryGetMessage(&messageString, webChannels))
+  WebVector<mojo::ScopedHandle> handles;
+  if (!webChannel.tryGetMessage(&messageString, webChannels, handles))
     return false;
 
   if (webChannels.size()) {
     channels.resize(webChannels.size());
     for (size_t i = 0; i < webChannels.size(); ++i)
       channels[i] = std::move(webChannels[i]);
   }
   message = SerializedScriptValue::create(messageString);
   return true;
 }
@@ skipping 104 matching lines @@
   }
   return portArray;
 }
 
 DEFINE_TRACE(MessagePort) {
   ContextLifecycleObserver::trace(visitor);
   EventTargetWithInlineData::trace(visitor);
 }
 
 }  // namespace blink