[inspector] Refactor protocol-test.js

test/inspector/debugger/schedule-step-into-async-set-timeout.js

Index: test/inspector/debugger/schedule-step-into-async-set-timeout.js
diff --git a/test/inspector/debugger/schedule-step-into-async-set-timeout.js b/test/inspector/debugger/schedule-step-into-async-set-timeout.js
index f6ffe6e0a7d9a5eaa689aa8d96363d863e6e06a1..f2171a5037502264d02936d631bcae21b73ac53c 100644
--- a/test/inspector/debugger/schedule-step-into-async-set-timeout.js
+++ b/test/inspector/debugger/schedule-step-into-async-set-timeout.js
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-InspectorTest.log('Checks Debugger.scheduleStepIntoAsync with setTimeout.');
-InspectorTest.setupScriptMap();
+let {session, contextGroup, Protocol} = InspectorTest.start('Checks Debugger.scheduleStepIntoAsync with setTimeout.');
+session.setupScriptMap();
 Protocol.Debugger.enable();
 InspectorTest.runAsyncTestSuite([
   async function testSetTimeout() {
@@ -42,7 +42,7 @@ InspectorTest.runAsyncTestSuite([
     Protocol.Debugger.stepOver();
     await waitPauseAndDumpLocation();
     await Protocol.Debugger.resume();
-    await InspectorTest.waitPendingTasks();
+    await InspectorTest.waitForPendingTasks();
   },
 
   async function testSetTimeoutWithoutJS() {
@@ -70,6 +70,6 @@ InspectorTest.runAsyncTestSuite([
 async function waitPauseAndDumpLocation() {
   var message = await Protocol.Debugger.oncePaused();
   InspectorTest.log('paused at:');
-  await InspectorTest.logSourceLocation(message.params.callFrames[0].location);
+  await session.logSourceLocation(message.params.callFrames[0].location);
   return message;
 }