Fix navigation to unittest files

tools/telemetry/telemetry/page/actions/seek_unittest.py

Index: tools/telemetry/telemetry/page/actions/seek_unittest.py
diff --git a/tools/telemetry/telemetry/page/actions/seek_unittest.py b/tools/telemetry/telemetry/page/actions/seek_unittest.py
index c273cacc1fdfe2474e2d17dab3a1604b5d757349..fd021f03824b05e0d7c85cd8397fbc9108d71200 100644
--- a/tools/telemetry/telemetry/page/actions/seek_unittest.py
+++ b/tools/telemetry/telemetry/page/actions/seek_unittest.py
@@ -5,7 +5,6 @@
 from telemetry.core import util
 from telemetry.page.actions import seek
 from telemetry.unittest import tab_test_case
-from telemetry.unittest import test
 
 
 AUDIO_1_SEEKED_CHECK = 'window.__hasEventCompleted("#audio_1", "seeked");'
@@ -16,11 +15,8 @@ class SeekActionTest(tab_test_case.TabTestCase):
 
   def setUp(self):
     tab_test_case.TabTestCase.setUp(self)
-    self._browser.SetHTTPServerDirectories(util.GetUnittestDataDir())
-    self._tab.Navigate(self._browser.http_server.UrlOf('video_test.html'))
-    self._tab.WaitForDocumentReadyStateToBeComplete()
+    self.Navigate('video_test.html')
 
-  @test.Disabled('chromeos')
   def testSeekWithNoSelector(self):
     """Tests that with no selector Seek  action seeks first media element."""
     data = {'wait_for_seeked': True, 'seek_time': 1}
@@ -31,7 +27,6 @@ class SeekActionTest(tab_test_case.TabTestCase):
     self.assertTrue(self._tab.EvaluateJavaScript(VIDEO_1_SEEKED_CHECK))
     self.assertFalse(self._tab.EvaluateJavaScript(AUDIO_1_SEEKED_CHECK))
 
-  @test.Disabled('chromeos')
   def testSeekWithVideoSelector(self):
     """Tests that Seek action seeks video element matching selector."""
     data = {'selector': '#video_1', 'wait_for_seeked': True, 'seek_time': 1}
@@ -45,7 +40,6 @@ class SeekActionTest(tab_test_case.TabTestCase):
     self.assertTrue(self._tab.EvaluateJavaScript(VIDEO_1_SEEKED_CHECK))
     self.assertFalse(self._tab.EvaluateJavaScript(AUDIO_1_SEEKED_CHECK))
 
-  @test.Disabled('chromeos')
   def testSeekWithAllSelector(self):
     """Tests that Seek action seeks all video elements with selector='all'."""
     data = {'selector': 'all', 'wait_for_seeked': True, 'seek_time': 1}
@@ -59,7 +53,6 @@ class SeekActionTest(tab_test_case.TabTestCase):
     self.assertTrue(self._tab.EvaluateJavaScript(VIDEO_1_SEEKED_CHECK))
     self.assertTrue(self._tab.EvaluateJavaScript(AUDIO_1_SEEKED_CHECK))
 
-  @test.Disabled('chromeos')   # http://crbug.com/273887
   def testSeekWaitForSeekTimeout(self):
     """Tests that wait_for_seeked timeouts if video does not seek."""
     data = {'selector': '#video_1',