Make it possible to modify the connection from ChildProcessProxy subclasses.

Reviewed by Anders Carlsson.

* Shared/ChildProcessProxy.cpp:
(WebKit::ChildProcessProxy::ChildProcessProxy):
(WebKit::ChildProcessProxy::didFinishLaunching):
(WebKit::ChildProcessProxy::clearConnection):
(WebKit::ChildProcessProxy::connectionWillOpen):
(WebKit::ChildProcessProxy::connectionWillClose):
* Shared/ChildProcessProxy.h:
(ChildProcessProxy):
* UIProcess/WebProcessProxy.cpp:
(WebKit::WebProcessProxy::WebProcessProxy):
(WebKit::WebProcessProxy::connectionWillOpen):
(WebKit::WebProcessProxy::connectionWillClose):
* UIProcess/WebProcessProxy.h:
(WebProcessProxy):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@141705 268f45cc-cd09-0410-ab3c-d52691b4dbfc