Add Wait* API to ActionRunner to wrap over WaitAction.

tools/perf/page_sets/tough_canvas_cases.py

 # Copyright 2014 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.
 # pylint: disable=W0401,W0614
 from telemetry.page.actions.all_page_actions import *
 from telemetry.page import page as page_module
 from telemetry.page import page_set as page_set_module
 
 
 class ToughCanvasCasesPage(page_module.Page):
 
   def __init__(self, url, page_set):
     super(ToughCanvasCasesPage, self).__init__(url=url, page_set=page_set)
     self.archive_data_file = 'data/tough_canvas_cases.json'
 
   def RunNavigateSteps(self, action_runner):
     action_runner.NavigateToPage(self)
-    action_runner.RunAction(WaitAction(
-      {
-        "javascript": "document.readyState == 'complete'"
-      }))
+    action_runner.WaitForJavaScriptCondition(
+        "document.readyState == 'complete'")
 
   def RunSmoothness(self, action_runner):
-    action_runner.RunAction(WaitAction(
-      {
-        "seconds": 5
-      }))
+    action_runner.Wait(5)
 
 
 class MicrosofFirefliesPage(ToughCanvasCasesPage):
 
   def __init__(self, page_set):
     super(MicrosofFirefliesPage, self).__init__(
       # pylint: disable=C0301
       url='http://ie.microsoft.com/testdrive/Performance/Fireflies/Default.html',
       page_set=page_set)
 
@@ skipping 47 matching lines @@
       'file://tough_canvas_cases/canvas2d_balls_common/bouncing_balls.html?ball=filled_path&back=gradient',
       # pylint: disable=C0301
       'file://tough_canvas_cases/canvas2d_balls_common/bouncing_balls.html?ball=text&back=white&ball_count=15',
       'file://tough_canvas_cases/canvas-animation-no-clear.html',
       'file://../../../chrome/test/data/perf/canvas_bench/single_image.html',
       'file://../../../chrome/test/data/perf/canvas_bench/many_images.html'
     ]
 
     for url in urls_list:
       self.AddPage(ToughCanvasCasesPage(url, self))