https://bugs.webkit.org/show_bug.cgi?id=65250

Reviewed by Alexey Proskuryakov.

Add useHixie76Protocol() method to WebSocketChannel and its family. To implement hybi-specific
attributes in WebSocket object, WebSocket class needs to be able to get the value of
useHixie76Protocol flag of WebSocketChannel.

If the WebSocket object is created in a worker thread, the flag value must be obtained from
WebSocketChannel which resides in the loader thread (through WorkerThreadableWebSocketChannel).
Since the value does not change after creation of WebSocketChannel, it can be cached in
the worker thread.

There is no change in behavior, thus no new tests.

* websockets/ThreadableWebSocketChannel.h:
* websockets/ThreadableWebSocketChannelClientWrapper.cpp:
(WebCore::ThreadableWebSocketChannelClientWrapper::ThreadableWebSocketChannelClientWrapper):
(WebCore::ThreadableWebSocketChannelClientWrapper::useHixie76Protocol):
(WebCore::ThreadableWebSocketChannelClientWrapper::setUseHixie76Protocol):
* websockets/ThreadableWebSocketChannelClientWrapper.h:
* websockets/WebSocketChannel.cpp:
(WebCore::WebSocketChannel::useHixie76Protocol):
* websockets/WebSocketChannel.h:
* websockets/WorkerThreadableWebSocketChannel.cpp:
(WebCore::WorkerThreadableWebSocketChannel::useHixie76Protocol):
(WebCore::WorkerThreadableWebSocketChannel::Peer::useHixie76Protocol):
(WebCore::WorkerThreadableWebSocketChannel::Bridge::setWebSocketChannel):
(WebCore::WorkerThreadableWebSocketChannel::Bridge::mainThreadCreateWebSocketChannel):
* websockets/WorkerThreadableWebSocketChannel.h:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@91919 268f45cc-cd09-0410-ab3c-d52691b4dbfc