Remove href_change and navigate from wait action

tools/telemetry/telemetry/page/page_test_unittest.py

Index: tools/telemetry/telemetry/page/page_test_unittest.py
diff --git a/tools/telemetry/telemetry/page/page_test_unittest.py b/tools/telemetry/telemetry/page/page_test_unittest.py
index eb9f42b453195e397eededc89e0ea045d5c0b35a..296b8d3b9692e4b695caba3fdb4d2ab80ff42026 100644
--- a/tools/telemetry/telemetry/page/page_test_unittest.py
+++ b/tools/telemetry/telemetry/page/page_test_unittest.py
@@ -23,24 +23,13 @@ class DoNothingPageTest(page_test.PageTest):
     pass
 
 class AppendAction(page_action.PageAction):
-  def RunAction(self, page, tab, previous_action):
+  def RunAction(self, page, tab):
     self.var.append(True)
 
-class WrapAppendAction(page_action.PageAction):
-  def RunsPreviousAction(self):
-    return True
-
-  def RunAction(self, page, tab, previous_action):
-    self.var.append('before')
-    previous_action.WillRunAction(page, tab)
-    previous_action.RunAction(page, tab, None)
-    self.var.append('after')
-
 class PageTestUnitTest(unittest.TestCase):
   def setUp(self):
     super(PageTestUnitTest, self).setUp()
     all_page_actions.RegisterClassForTest('append', AppendAction)
-    all_page_actions.RegisterClassForTest('wrap_append', WrapAppendAction)
 
     self._page_test = DoNothingPageTest('action_to_run')
     self._page = _CreatePage('blank.html')
@@ -56,33 +45,18 @@ class PageTestUnitTest(unittest.TestCase):
 
     self.assertTrue(action_called)
 
-  def testPreviousAction(self):
-    action_list = []
-    action_to_run = [
-      { 'action': 'append', 'var': action_list },
-      { 'action': 'wrap_append', 'var': action_list }
-    ]
-    setattr(self._page, 'action_to_run', action_to_run)
-
-    self._page_test.Run(self._page, None, None)
-
-    self.assertEqual(action_list, ['before', True, 'after'])
-
   def testReferenceAction(self):
     action_list = []
     action_to_run = [
-      { 'action': 'referenced_action_1' },
-      { 'action': 'referenced_action_2' }
+      { 'action': 'referenced_action' },
     ]
-    referenced_action_1 = { 'action': 'append', 'var': action_list }
-    referenced_action_2 = { 'action': 'wrap_append', 'var': action_list }
+    referenced_action = { 'action': 'append', 'var': action_list }
     setattr(self._page, 'action_to_run', action_to_run)
-    setattr(self._page, 'referenced_action_1', referenced_action_1)
-    setattr(self._page, 'referenced_action_2', referenced_action_2)
+    setattr(self._page, 'referenced_action', referenced_action)
 
     self._page_test.Run(self._page, None, None)
 
-    self.assertEqual(action_list, ['before', True, 'after'])
+    self.assertEqual(action_list, [True])
 
   def testRepeatAction(self):
     action_list = []
@@ -95,10 +69,9 @@ class PageTestUnitTest(unittest.TestCase):
 
   def testRepeatReferenceAction(self):
     action_list = []
-    action_to_run = { 'action': 'referenced_action', 'repeat': 2 }
+    action_to_run = { 'action': 'referenced_action', 'repeat': 3 }
     referenced_action = [
       { 'action': 'append', 'var': action_list },
-      { 'action': 'wrap_append', 'var': action_list }
     ]
     setattr(self._page, 'action_to_run', action_to_run)
     setattr(self._page, 'referenced_action', referenced_action)
@@ -106,12 +79,6 @@ class PageTestUnitTest(unittest.TestCase):
     self._page_test.Run(self._page, None, None)
 
     self.assertEqual(action_list,
-                     ['before', True, 'after', 'before', True, 'after'])
+                     [True, True, True])
 
-  def testRepeatPreviousActionFails(self):
-    action_list = []
-    action_to_run = { 'action': 'wrap_append', 'var': action_list, 'repeat': 2 }
-    setattr(self._page, 'action_to_run', action_to_run)
 
-    self.assertRaises(page_action.PageActionFailed,
-                      lambda: self._page_test.Run(self._page, None, None))