https://bugs.webkit.org/show_bug.cgi?id=74868

Reviewed by Pavel Feldman.

This replaces InspectorExtensionAPI string within InspectorFrontendHost with a map by extension
security origin, so that we can have APIs customized by extension (in particular, this is needed
to expose experimental APIs only to certain extensions).

* inspector/InspectorAgent.cpp:
(WebCore::InspectorAgent::didClearWindowObjectInWorld):
(WebCore::InspectorAgent::setInjectedScriptForOrigin):
* inspector/InspectorAgent.h:
* inspector/InspectorController.cpp:
(WebCore::InspectorController::setInjectedScriptForOrigin):
* inspector/InspectorController.h:
* inspector/InspectorFrontendHost.cpp:
(WebCore::InspectorFrontendHost::setInjectedScriptForOrigin):
* inspector/InspectorFrontendHost.h:
* inspector/InspectorFrontendHost.idl:
* inspector/front-end/ExtensionServer.js:
(WebInspector.ExtensionServer.prototype._addExtensions):
(WebInspector.ExtensionServer.prototype._addExtension):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@103325 268f45cc-cd09-0410-ab3c-d52691b4dbfc