[content shell] implement testRunner.execCommand

content/shell/webkit_test_runner.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var testRunner = testRunner || {};
 
 (function() {
   native function CloseWebInspector();
   native function Display();
   native function EvaluateInWebInspector();
+  native function ExecCommand();
   native function GetWorkerThreadCount();
   native function NotifyDone();
   native function SetCanOpenWindows();
   native function SetDumpAsText();
   native function SetDumpChildFramesAsText();
   native function SetPrinting();
   native function SetShouldStayOnPageAfterHandlingBeforeUnload();
   native function SetWaitUntilDone();
   native function SetXSSAuditorEnabled();
   native function ShowWebInspector();
@@ skipping 47 matching lines @@
                           "setXSSAuditorEnabled",
                           {value: SetXSSAuditorEnabled});
     Object.defineProperty(this, "waitUntilDone", {value: SetWaitUntilDone});
     Object.defineProperty(this, "showWebInspector", {value: ShowWebInspector});
     Object.defineProperty(this,
                           "closeWebInspector",
                           {value: CloseWebInspector});
     Object.defineProperty(this,
                           "evaluateInWebInspector",
                           {value: EvaluateInWebInspector});
+    Object.defineProperty(this, "execCommand", {value: ExecCommand});
 
 
     Object.defineProperty(this,
                           "globalFlag",
                           {
                             get: GetGlobalFlag,
                             set: SetGlobalFlag,
                             writeable: true,
                             configurable: true,
                             enumerable: true
@@ skipping 37 matching lines @@
         "abortModal"
     ];
     for (var idx in stubs) {
       Object.defineProperty(
           this, stubs[idx], {value: function() { return null; }});
     }
   }
   TestRunner.prototype = DefaultHandler("testRunner");
   testRunner = new TestRunner();
 })();