Enable Blink to pass extra Mojo handles across MessagePorts

content/child/webmessageportchannel_impl.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_CHILD_WEBMESSAGEPORTCHANNEL_IMPL_H_
 #define CONTENT_CHILD_WEBMESSAGEPORTCHANNEL_IMPL_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 24 matching lines @@
       std::vector<mojo::ScopedMessagePipeHandle> handles);
 
   MessagePort ReleaseMessagePort();
 
  private:
   explicit WebMessagePortChannelImpl(mojo::ScopedMessagePipeHandle handle);
 
   // WebMessagePortChannel implementation.
   void setClient(blink::WebMessagePortChannelClient* client) override;
   void postMessage(const blink::WebString& encoded_message,
-                   blink::WebMessagePortChannelArray channels) override;
+                   blink::WebMessagePortChannelArray channels,
+                   blink::WebVector<mojo::ScopedHandle> handles) override;
   bool tryGetMessage(blink::WebString* encoded_message,
-                     blink::WebMessagePortChannelArray& channels) override;
+                     blink::WebMessagePortChannelArray& channels,
+                     blink::WebVector<mojo::ScopedHandle>& handles) override;
 
   MessagePort port_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMessagePortChannelImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_WEBMESSAGEPORTCHANNEL_IMPL_H_