Add Wait* API to ActionRunner to wrap over WaitAction.

content/test/gpu/page_sets/pixel_tests.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 PixelTestsPage(page_module.Page):
 
   def __init__(self, url, name, test_rect, revision, page_set):
     super(PixelTestsPage, self).__init__(url=url, page_set=page_set, name=name)
     self.user_agent_type = 'desktop'
     self.test_rect = test_rect
     self.revision = revision
 
   def RunNavigateSteps(self, action_runner):
     action_runner.NavigateToPage(self)
-    action_runner.RunAction(WaitAction(
-      {
-        'javascript': 'domAutomationController._finished',
-        'timeout': 30
-      }))
+    action_runner.WaitForJavaScriptCondition(
+        'domAutomationController._finished', timeout=30)
 
 
 class PixelTestsPageSet(page_set_module.PageSet):
 
   """ Some basic test cases for GPU. """
 
   def __init__(self):
     super(PixelTestsPageSet, self).__init__(
       user_agent_type='desktop')
     self.AddPage(PixelTestsPage(
       url='file://../../data/gpu/pixel_canvas2d.html',
       name='Pixel.Canvas2DRedBox',
       test_rect=[0, 0, 300, 300],
       revision=3,
       page_set=self))
 
     self.AddPage(PixelTestsPage(
       url='file://../../data/gpu/pixel_css3d.html',
       name='Pixel.CSS3DBlueBox',
       test_rect=[0, 0, 300, 300],
       revision=8,
       page_set=self))
 
     self.AddPage(PixelTestsPage(
       url='file://../../data/gpu/pixel_webgl.html',
       name='Pixel.WebGLGreenTriangle',
       test_rect=[0, 0, 300, 300],
       revision=7,
       page_set=self))