Refactor pdf_scripting_api.js to remove the PDFMessagingHost in OOP PDF

chrome/test/data/pdf/basic_plugin_test.js

 // Copyright 2014 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.
 
 /**
  * These tests require that the PDF plugin be available to run correctly.
  */
 var tests = [
   /**
    * Test that the page is sized to the size of the document.
    */
   function testPageSize() {
     // Verify that the initial zoom is 100%.
     chrome.test.assertEq(1, viewer.viewport.zoom);
 
     var sizer = document.getElementById('sizer');
     chrome.test.assertEq(826, sizer.offsetWidth);
     chrome.test.assertEq(1066, sizer.offsetHeight);
-  }
+    chrome.test.succeed();
+  },
 ];
 
-function runTests() {
-  for (var i = 0; i < tests.length; ++i) {
-    console.log('Running: ' + tests[i].name);
-    tests[i]();
-  }
-  chrome.test.notifyPass();
-}
-
-window.addEventListener('pdfload', runTests);
+window.addEventListener('pdfload', function() {
+  chrome.test.runTests(tests);
+});