Fix and reenable checkbox in Polymer page set.

tools/perf/page_sets/polymer.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.
 from telemetry.page import page as page_module
 from telemetry.page import page_set as page_set_module
 
 class PolymerPage(page_module.Page):
 
   def __init__(self, url, page_set):
     super(PolymerPage, self).__init__(
@@ skipping 127 matching lines @@
                                 distance='900',
                                 element_function=element_function)
     interaction.End()
 
   def TouchEverything(self, action_runner):
     tappable_types = [
         'paper-button',
         'paper-checkbox',
         'paper-fab',
         'paper-icon-button',
-        # crbug.com/394756
-        # 'paper-radio-button',
+        'paper-radio-button',
         'paper-tab',
         'paper-toggle-button',
         'x-shadow',
         ]
     for tappable_type in tappable_types:
       self.DoActionOnWidgetType(action_runner, tappable_type, self.TapWidget)
     swipeable_types = ['paper-slider']
     for swipeable_type in swipeable_types:
       self.DoActionOnWidgetType(action_runner, swipeable_type, self.SwipeWidget)
 
   def DoActionOnWidgetType(self, action_runner, widget_type, action_function):
     # Find all widgets of this type, but skip any that are disabled or are
     # currently active as they typically don't produce animation frames.
     element_list_query = (self.iframe_js +
         ('.contentDocument.querySelectorAll("body %s:not([disabled]):'
-         'not([active])")' % widget_type))
+         'not([active]):not([checked])")' % widget_type))
     roles_count_query = element_list_query + '.length'
     for i in range(action_runner.EvaluateJavaScript(roles_count_query)):
       element_query = element_list_query + ("[%d]" % i)
       if action_runner.EvaluateJavaScript(
           element_query + '.offsetParent != null'):
         # Only try to tap on visible elements (offsetParent != null)
         action_runner.ExecuteJavaScript(element_query + '.scrollIntoView()')
         action_runner.Wait(1) # wait for page to settle after scrolling
         action_function(action_runner, element_query)
 
@@ skipping 23 matching lines @@
 
     self.AddPage(PolymerCalculatorPage(self))
     self.AddPage(PolymerShadowPage(self))
 
     # Polymer Sampler subpages that are interesting to tap / swipe elements on
     TAPPABLE_PAGES = [
         'paper-button',
         'paper-checkbox',
         'paper-fab',
         'paper-icon-button',
-        # crbug.com/394756
-        # 'paper-radio-button',
+        'paper-radio-button',
         'paper-shadow',
         'paper-tabs',
         'paper-toggle-button',
         ]
     for p in TAPPABLE_PAGES:
       self.AddPage(PolymerSampler(self, p))
 
     # Polymer Sampler subpages that are interesting to scroll
     SCROLLABLE_PAGES = [
         # crbug.com/394756
         # 'core-scroll-header-panel',
         ]
     for p in SCROLLABLE_PAGES:
       self.AddPage(PolymerSampler(self, p, scrolling_page=True))