moved commonly used private functions to it's own utility file.

chrome/test/functional/find_in_page.py

Index: chrome/test/functional/find_in_page.py
===================================================================
--- chrome/test/functional/find_in_page.py	(revision 64201)
+++ chrome/test/functional/find_in_page.py	(working copy)
@@ -8,6 +8,7 @@
 
 import pyauto_functional
 import pyauto
+import test_utils
 
 
 class FindMatchTests(pyauto.PyUITest):
@@ -74,40 +75,29 @@
     """Verify search for text within special URLs such as chrome:history.
        chrome://history, chrome://downloads, pyAuto Data directory
     """
+    zip_file = 'a_zip_file.zip'
     self.NavigateToURL(self.GetFileURLForPath(self.DataDir()))
     # search in Data directory
     self.assertEqual(1,
         self.FindInPage('downloads', tab_index=0)['match_count'])
     # search in History page
     self.AppendTab(pyauto.GURL('chrome://history'))
+    # the contents in the history page load asynchronously after tab loads
+    self.WaitUntil(
+        lambda: self.FindInPage('data', tab_index=1)['match_count'],
+        expect_retval=1)
     self.assertEqual(1, self.FindInPage('data', tab_index=1)['match_count'])
     # search in Downloads page
-    self._DownloadZipFile()
+    test_utils.DownloadTestFile(self, zip_file)
     self.AppendTab(pyauto.GURL('chrome://downloads'))
+    # the contents in the downloads page load asynchronously after tab loads
+    self.WaitUntil(
+        lambda: self.FindInPage(zip_file, tab_index=2)['match_count'],
+        expect_retval=2)
     self.assertEqual(2,
-        self.FindInPage('a_zip_file.zip', tab_index=2)['match_count'])
-    self._RemoveZipFile()
+        self.FindInPage(zip_file, tab_index=2)['match_count'])
+    test_utils.RemoveTestFile(self, zip_file)
 
-  def _DownloadZipFile(self):
-    """Download a zip file."""
-    zip_file = 'a_zip_file.zip'
-    download_dir = os.path.join(os.path.abspath(self.DataDir()), 'downloads')
-    file_path = os.path.join(download_dir, zip_file)
-    file_url = self.GetFileURLForPath(file_path)
-    downloaded_pkg = os.path.join(self.GetDownloadDirectory().value(), zip_file)
-    # Check if zip file already exists. If so then delete it.
-    if os.path.exists(downloaded_pkg):
-      self._RemoveZipFile()
-    self.DownloadAndWaitForStart(file_url)
-    # Wait for the download to finish
-    self.WaitForAllDownloadsToComplete()
 
-  def _RemoveZipFile(self):
-    """Delete a_zip_file.zip from the download directory."""
-    downloaded_pkg = os.path.join(self.GetDownloadDirectory().value(),
-                                  'a_zip_file.zip')
-    os.remove(downloaded_pkg)
-
-
 if __name__ == '__main__':
   pyauto_functional.Main()