[Telemetry] Explicitly define Name() method for all perf benchmarks

tools/perf/benchmarks/maps.py

 # Copyright 2013 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.
 
 """Runs a Google Maps performance test.
 Rerforms several common navigation actions on the map (pan, zoom, rotate)"""
 
 import os
 import re
 
@@ skipping 32 matching lines @@
   def RunNavigateSteps(self, action_runner):
     action_runner.NavigateToPage(self)
     action_runner.WaitForJavaScriptCondition('window.testDone')
 
 
 @benchmark.Disabled
 class MapsBenchmark(benchmark.Benchmark):
   """Basic Google Maps benchmarks."""
   test = _MapsMeasurement
 
+  @classmethod
+  def Name(cls):
+    return 'maps'
+
   def CreatePageSet(self, options):
     page_set_path = os.path.join(
         util.GetChromiumSrcDir(), 'tools', 'perf', 'page_sets')
     ps = page_set_module.PageSet(
         archive_data_file='data/maps.json', file_path=page_set_path,
         bucket=page_set_module.PUBLIC_BUCKET)
     ps.AddUserStory(MapsPage(ps, ps.base_dir))
     return ps
 
 class MapsNoVsync(MapsBenchmark):
   """Runs the Google Maps benchmark with Vsync disabled"""
   tag = 'novsync'
 
+  @classmethod
+  def Name(cls):
+    return 'maps.novsync'
+
   def CustomizeBrowserOptions(self, options):
     options.AppendExtraBrowserArgs('--disable-gpu-vsync')