PDF: Allow external navigation links in PDF bookmarks

chrome/test/data/pdf/bookmarks_test.js

 // Copyright 2015 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 tests = [
   /**
    * Test that the correct bookmarks were loaded for test-bookmarks.pdf.
    */
   function testHasCorrectBookmarks() {
     var bookmarks = viewer.bookmarks;
 
     // Load all relevant bookmarks.
-    chrome.test.assertEq(2, bookmarks.length);
+    chrome.test.assertEq(3, bookmarks.length);
     var firstBookmark = bookmarks[0];
     var secondBookmark = bookmarks[1];
+    var uriBookmark = bookmarks[2];
     chrome.test.assertEq(1, firstBookmark.children.length);
     chrome.test.assertEq(0, secondBookmark.children.length);
     var firstNestedBookmark = firstBookmark.children[0];
 
     // Check titles.
     chrome.test.assertEq('First Section',
                          firstBookmark.title);
     chrome.test.assertEq('First Subsection',
                          firstNestedBookmark.title);
     chrome.test.assertEq('Second Section',
                          secondBookmark.title);
+    chrome.test.assertEq('URI Bookmark', uriBookmark.title);
+
     // Check pages.
     chrome.test.assertEq(0, firstBookmark.page);
     chrome.test.assertEq(1, firstNestedBookmark.page);
     chrome.test.assertEq(2, secondBookmark.page);
+    chrome.test.assertEq(undefined, uriBookmark.page);
+
+    chrome.test.assertEq('http://www.chromium.org', uriBookmark.uri);
 
     chrome.test.succeed();
   }
 ];
 
 var scriptingAPI = new PDFScriptingAPI(window, window);
 scriptingAPI.setLoadCallback(function() {
   chrome.test.runTests(tests);
 });