Web Inspector: Make "Copy as HTML" use the same copy functions as other copy methods.

Web Inspector: Make "Copy as HTML" use the same copy functions as other copy methods.
https://bugs.webkit.org/show_bug.cgi?id=76706

Patch by Konrad Piascik <kpiascik@rim.com> on 2012-01-23
Reviewed by Pavel Feldman.

Changed DOMAgent.copyNode to call getOuterHTML and use the callback function to
return the text to InspectorFrontendHost.copyText.  This will make all copy
functions use the same code path.

Not testable.

* inspector/Inspector.json:
* inspector/InspectorDOMAgent.cpp:
* inspector/InspectorDOMAgent.h:
* inspector/front-end/DOMAgent.js:
(WebInspector.DOMNode.prototype.copyNode.copy):
(WebInspector.DOMNode.prototype.copyNode):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@105679 268f45cc-cd09-0410-ab3c-d52691b4dbfc