[WK2] Use C++ lambdas in IPC::Connection
https://bugs.webkit.org/show_bug.cgi?id=138018

Reviewed by Anders Carlsson.

Replace uses of WTF::bind() in the IPC::Connection class with C++11 lambdas.

* Platform/IPC/Connection.cpp:
(IPC::Connection::SyncMessageState::processIncomingMessage):
(IPC::Connection::dispatchWorkQueueMessageReceiverMessage):
(IPC::Connection::invalidate):
(IPC::Connection::sendMessage):
(IPC::Connection::processIncomingMessage):
(IPC::Connection::enqueueIncomingMessage):
* Platform/IPC/mac/ConnectionMac.mm:
(IPC::Connection::initializeDeadNameSource):
(IPC::Connection::receiveSourceEventHandler):
* Platform/IPC/unix/ConnectionUnix.cpp:
(IPC::Connection::open):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@175806 268f45cc-cd09-0410-ab3c-d52691b4dbfc