Modifying a download test to wait until download is completed.

BUG=83942
TEST=downloads.DownloadsTest.testDownloadsPersistence
Review URL: http://codereview.chromium.org/6992090

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@86760 0039d316-1c4b-4281-b951-d872f2087c98

chrome/test/functional/PYAUTO_TESTS

@@ -50,7 +50,7 @@
       'crash_reporter',
       'databases',
       'downloads',
-      'find_in_page',      
+      'find_in_page',
       # Turkish I problem. crbug.com/60638
       '-find_in_page.FindMatchTests.testLocalizationAndCaseOrder',
       'execute_javascript',
@@ -94,7 +94,6 @@
       # crbug.com/50481, crbug.com/54942
       '-downloads.DownloadsTest.testZip',
       '-downloads.DownloadsTest.testRemoveDownload',
-      '-downloads.DownloadsTest.testDownloadsPersistence',  # crbug.com/83942
       # crbug.com/66072
       '-notifications.NotificationsTest.testNotificationOrderAfterClosingOne',
       # crbug.com/70694, crbug.com/73078

chrome/test/functional/downloads.py

@@ -394,6 +394,7 @@ class DownloadsTest(pyauto.PyUITest):
                                   'a_zip_file.zip')
     self._ClearLocalDownloadState(downloaded_pkg)
     self.DownloadAndWaitForStart(file_url)
+    self.WaitForDownloadToComplete(downloaded_pkg)
     downloads = self.GetDownloadsInfo().Downloads()
     self.assertEqual(1, len(downloads))
     self.assertEqual('a_zip_file.zip', downloads[0]['file_name'])