Merge 113282 - Switch web intents API to be vendor-prefixed

LayoutTests/webintents/resources/web-intents-testing.js

 // Callback function to be used for a successful web intent call.
 function onSuccess(data) {
   debug("* got reply: " + data);
 
   if (window.layoutTestController) {
     window.layoutTestController.notifyDone();
   }
 }
 
 // Callback function to be used for a failed web intent call.
 function onFailure(data) {
   debug("* got failure: " + data);
 
   if (window.layoutTestController) {
     window.layoutTestController.notifyDone();
   }
 }
 
 // Launch a web intent call with callbacks.
 function startIntentWithCallbacks() {
-  navigator.startActivity(new Intent("action1", "mime/type1", "test"), onSuccess, onFailure);
+  navigator.webkitStartActivity(new WebKitIntent("action1", "mime/type1", "test"), onSuccess, onFailure);
   debug("* sent intent");
 
   if (window.layoutTestController) {
     window.layoutTestController.waitUntilDone();
   } else {
     alert('This test needs to run in DRT');
   }
 }
 
 // This button press simulator sets the user gesture indicator that an intent
 // requires to start.
 function simulateButtonPress() {
   var button = document.getElementById("button");
   if (eventSender) {
     eventSender.mouseMoveTo(button.getBoundingClientRect().left + 2, button.getBoundingClientRect().top + 12);
     eventSender.mouseDown();
     eventSender.mouseUp();
   }
 }