[inspector] Make InspectorTest.sendCommand* private

test/inspector/runtime/get-properties.js

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // A general-purpose engine for sending a sequence of protocol commands.
 // The clients provide requests and response handlers, while the engine catches
 // errors and makes sure that once there's nothing to do completeTest() is called.
 // @param step is an object with command, params and callback fields
 function runRequestSeries(step)
 {
@@ skipping 32 matching lines @@
       var next;
       try {
         next = s.callback(response.result);
       } catch (e) {
         InspectorTest.log(e.stack);
         InspectorTest.completeTest();
         return;
       }
       processStep(next);
     }
-    InspectorTest.sendCommand(s.command, s.params, innerCallback);
+    var command = s.command.split(".");
+    Protocol[command[0]][command[1]](s.params).then(innerCallback);
   }
 }
 
 var firstStep = { callback: callbackStart5 };
 
 runRequestSeries(firstStep);
 
 // 'Object5' section -- check properties of '5' wrapped as object  (has an internal property).
 
 function callbackStart5()
@@ skipping 147 matching lines @@
       var v = p.value;
       InspectorTest.log("  " + p.name + " " + v.type + " " + v.value);
     }
   }
 
   function NamedThingComparator(o1, o2)
   {
     return o1.name === o2.name ? 0 : (o1.name < o2.name ? -1 : 1);
   }
 }