[DevTools] New harness for inspector-protocol layout tests

third_party/WebKit/LayoutTests/http/tests/inspector-protocol/resources/interception-test.js

 var initialize_InterceptionTest = function() {
 
 var interceptionRequestParams = {};
 var requestIdToFilename = {};
 var filenameToInterceptionId = {};
 var loggedMessages = {};
 var InterceptionIdToCanonicalInterceptionId = {};
 var idToCanoncalId = {};
 var nextId = 1;
 
@@ skipping 275 matching lines @@
         "interceptionId": event.params.interceptionId,
         "authChallengeResponse": {
             "response": "ProvideCredentials",
             "username": username,
             "password": password
         }
     });
 }
 
 }