Disallow connecting an insecure WebSocket from a secure page.

Source/modules/websockets/MainThreadWebSocketChannel.h

 /*
  * Copyright (C) 2011, 2012 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 52 matching lines @@
     // You can specify the source file and the line number information
     // explicitly by passing the last parameter.
     // In the usual case, they are set automatically and you don't have to
     // pass it.
     static PassRefPtr<MainThreadWebSocketChannel> create(Document* document, WebSocketChannelClient* client, const String& sourceURL = String(), unsigned lineNumber = 0) { return adoptRef(new MainThreadWebSocketChannel(document, client, sourceURL, lineNumber)); }
     virtual ~MainThreadWebSocketChannel();
 
     bool send(const char* data, int length);
 
     // WebSocketChannel functions.
-    virtual void connect(const KURL&, const String& protocol) OVERRIDE;
+    virtual bool connect(const KURL&, const String& protocol) OVERRIDE;
     virtual String subprotocol() OVERRIDE;
     virtual String extensions() OVERRIDE;
     virtual WebSocketChannel::SendResult send(const String& message) OVERRIDE;
     virtual WebSocketChannel::SendResult send(const ArrayBuffer&, unsigned byteOffset, unsigned byteLength) OVERRIDE;
     virtual WebSocketChannel::SendResult send(PassRefPtr<BlobDataHandle>) OVERRIDE;
     virtual unsigned long bufferedAmount() const OVERRIDE;
     // Start closing handshake. Use the CloseEventCodeNotSpecified for the code
     // argument to omit payload.
     virtual void close(int code, const String& reason) OVERRIDE;
     virtual void fail(const String& reason, MessageLevel, const String&, unsigned lineNumber) OVERRIDE;
@@ skipping 146 matching lines @@
     unsigned m_lineNumberAtConstruction;
 
     WebSocketPerMessageDeflate m_perMessageDeflate;
 
     WebSocketDeflateFramer m_deflateFramer;
 };
 
 } // namespace WebCore
 
 #endif // MainThreadWebSocketChannel_h