[Telemetry] Add labels attribute to page as the new way to set label

tools/perf/page_sets/tough_video_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.
 from telemetry.page import page as page_module
 from telemetry.page import page_set as page_set_module
 
 
 class ToughVideoCasesPage(page_module.Page):
 
-  def __init__(self, url, page_set):
-    super(ToughVideoCasesPage, self).__init__(url=url, page_set=page_set)
+  def __init__(self, url, page_set, labels=None):
+    super(ToughVideoCasesPage, self).__init__(
+        url=url, page_set=page_set, labels=labels)
 
   def LoopMixedAudio(self, action_runner):
     action_runner.PlayMedia(selector='#background_audio',
                             playing_event_timeout_in_seconds=60)
     action_runner.LoopMedia(loop_count=50, selector='#mixed_audio')
 
   def LoopSingleAudio(self, action_runner):
     action_runner.LoopMedia(loop_count=50, selector='#single_audio')
 
   def PlayAction(self, action_runner):
@@ skipping 51 matching lines @@
 
   def RunPageInteractions(self, action_runner):
     self.PlayAction(action_runner)
 
 
 class Page4(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page4, self).__init__(
       url='file://tough_video_cases/video.html?src=crowd1080.webm',
-      page_set=page_set)
+      page_set=page_set, labels=['is_50fps'])
 
     self.add_browser_metrics = True
-    self.is_50fps = True
 
   def RunPageInteractions(self, action_runner):
     self.PlayAction(action_runner)
 
 
 class Page5(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page5, self).__init__(
       url='file://tough_video_cases/video.html?src=crowd2160.ogv',
-      page_set=page_set)
+      page_set=page_set, labels=['is_4k', 'is_50fps'])
 
     self.add_browser_metrics = True
-    self.is_4k = True
-    self.is_50fps = True
 
   def RunPageInteractions(self, action_runner):
     self.PlayAction(action_runner)
 
 
 class Page6(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page6, self).__init__(
       url='file://tough_video_cases/video.html?src=crowd2160.webm',
-      page_set=page_set)
+      page_set=page_set, labels=['is_4k', 'is_50fps'])
 
     self.add_browser_metrics = True
-    self.is_4k = True
-    self.is_50fps = True
 
   def RunPageInteractions(self, action_runner):
     self.PlayAction(action_runner)
 
 
 class Page7(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page7, self).__init__(
       url='file://tough_video_cases/video.html?src=tulip2.ogg&type=audio',
@@ skipping 42 matching lines @@
 
   def RunPageInteractions(self, action_runner):
     self.PlayAction(action_runner)
 
 
 class Page11(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page11, self).__init__(
       url='file://tough_video_cases/video.html?src=crowd1080.mp4',
-      page_set=page_set)
+      page_set=page_set, labels=['is_50fps'])
 
     self.add_browser_metrics = True
-    self.is_50fps = True
 
   def RunPageInteractions(self, action_runner):
     self.PlayAction(action_runner)
 
 
 class Page12(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page12, self).__init__(
       url='file://tough_video_cases/video.html?src=crowd2160.mp4',
-      page_set=page_set)
+      page_set=page_set, labels=['is_4k', 'is_50fps'])
 
     self.add_browser_metrics = True
-    self.is_4k = True
-    self.is_50fps = True
 
   def RunPageInteractions(self, action_runner):
     self.PlayAction(action_runner)
 
 
 class Page13(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page13, self).__init__(
       url='file://tough_video_cases/video.html?src=tulip2.mp3&type=audio',
@@ skipping 29 matching lines @@
 
   def RunPageInteractions(self, action_runner):
     self.PlayAction(action_runner)
 
 
 class Page16(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page16, self).__init__(
       url='file://tough_video_cases/video.html?src=garden2_10s.webm',
-      page_set=page_set)
+      page_set=page_set, labels=['is_4k'])
 
-    self.is_4k = True
     self.add_browser_metrics = True
 
   def RunPageInteractions(self, action_runner):
     self.PlayAction(action_runner)
 
 
 class Page17(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page17, self).__init__(
       url='file://tough_video_cases/video.html?src=garden2_10s.mp4',
-      page_set=page_set)
+      page_set=page_set, labels=['is_4k'])
 
-    self.is_4k = True
     self.add_browser_metrics = True
 
   def RunPageInteractions(self, action_runner):
     self.PlayAction(action_runner)
 
 
 class Page18(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page18, self).__init__(
       url='file://tough_video_cases/video.html?src=garden2_10s.ogv',
-      page_set=page_set)
+      page_set=page_set, labels=['is_4k'])
 
-    self.is_4k = True
     self.add_browser_metrics = True
 
   def RunPageInteractions(self, action_runner):
     self.PlayAction(action_runner)
 
 
 class Page19(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page19, self).__init__(
@@ skipping 69 matching lines @@
 
   def RunPageInteractions(self, action_runner):
     self.SeekBeforeAndAfterPlayhead(action_runner)
 
 
 class Page25(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page25, self).__init__(
       url='file://tough_video_cases/video.html?src=garden2_10s.webm',
-      page_set=page_set)
+      page_set=page_set, labels=['is_4k'])
 
     self.skip_basic_metrics = True
-    self.is_4k = True
 
   def RunPageInteractions(self, action_runner):
     self.SeekBeforeAndAfterPlayhead(action_runner)
 
 
 class Page26(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page26, self).__init__(
       url='file://tough_video_cases/video.html?src=garden2_10s.mp4',
-      page_set=page_set)
+      page_set=page_set, labels=['is_4k'])
 
     self.skip_basic_metrics = True
-    self.is_4k = True
 
   def RunPageInteractions(self, action_runner):
     self.SeekBeforeAndAfterPlayhead(action_runner)
 
 
 class Page27(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page27, self).__init__(
       url='file://tough_video_cases/video.html?src=garden2_10s.ogv',
-      page_set=page_set)
+      page_set=page_set, labels=['is_4k'])
 
     self.skip_basic_metrics = True
-    self.is_4k = True
 
   def RunPageInteractions(self, action_runner):
     self.SeekBeforeAndAfterPlayhead(action_runner)
 
 
 class Page28(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page28, self).__init__(
       url='file://tough_video_cases/audio_playback.html?id=single_audio',
@@ skipping 126 matching lines @@
     self.AddPage(Page26(self))
     self.AddPage(Page27(self))
     self.AddPage(Page28(self))
     self.AddPage(Page29(self))
     self.AddPage(Page30(self))
     self.AddPage(Page31(self))
     self.AddPage(Page32(self))
     self.AddPage(Page33(self))
     self.AddPage(Page34(self))
     self.AddPage(Page35(self))