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

tools/perf/benchmarks/media.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 measurements import media
 import page_sets
 from telemetry import benchmark
 from telemetry.page import page_test
 from telemetry.value import list_of_scalar_values
 from telemetry.value import scalar
@@ skipping 21 matching lines @@
                 results.current_page, trace_name, units='ms',
                 value=float(metrics[m]), important=True))
 
 
 @benchmark.Disabled('android')
 class Media(benchmark.Benchmark):
   """Obtains media metrics for key user scenarios."""
   test = media.Media
   page_set = page_sets.ToughVideoCasesPageSet
 
+  @classmethod
+  def Name(cls):
+    return 'media.tough_video_cases'
+
 
 @benchmark.Disabled
 class MediaNetworkSimulation(benchmark.Benchmark):
   """Obtains media metrics under different network simulations."""
   test = media.Media
   page_set = page_sets.MediaCnsCasesPageSet
 
+  @classmethod
+  def Name(cls):
+    return 'media.media_cns_cases'
+
 
 @benchmark.Enabled('android')
 @benchmark.Disabled('l', 'android-webview') # WebView: crbug.com/419689
 class MediaAndroid(benchmark.Benchmark):
   """Obtains media metrics for key user scenarios on Android."""
   test = media.Media
   tag = 'android'
   page_set = page_sets.ToughVideoCasesPageSet
   # Exclude is_4k and 50 fps media files (garden* & crowd*).
   options = {'page_label_filter_exclude': 'is_4k,is_50fps'}
 
+  @classmethod
+  def Name(cls):
+    return 'media.android.tough_video_cases'
+
 
 @benchmark.Enabled('chromeos')
 class MediaChromeOS4kOnly(benchmark.Benchmark):
   """Benchmark for media performance on ChromeOS using only is_4k test content.
   """
   test = media.Media
   tag = 'chromeOS4kOnly'
   page_set = page_sets.ToughVideoCasesPageSet
   options = {
       'page_label_filter': 'is_4k',
       # Exclude is_50fps test files: crbug/331816
       'page_label_filter_exclude': 'is_50fps'
   }
 
+  @classmethod
+  def Name(cls):
+    return 'media.chromeOS4kOnly.tough_video_cases'
+
 
 @benchmark.Enabled('chromeos')
 class MediaChromeOS(benchmark.Benchmark):
   """Benchmark for media performance on all ChromeOS platforms.
 
   This benchmark does not run is_4k content, there's a separate benchmark for
   that.
   """
   test = media.Media
   tag = 'chromeOS'
   page_set = page_sets.ToughVideoCasesPageSet
   # Exclude is_50fps test files: crbug/331816
   options = {'page_label_filter_exclude': 'is_4k,is_50fps'}
 
+  @classmethod
+  def Name(cls):
+    return 'media.chromeOS.tough_video_cases'
+
 
 @benchmark.Disabled('android-webview') # crbug.com/419689
 class MediaSourceExtensions(benchmark.Benchmark):
   """Obtains media metrics for key media source extensions functions."""
   test = _MSEMeasurement
   page_set = page_sets.MseCasesPageSet
 
+  @classmethod
+  def Name(cls):
+    return 'media.mse_cases'
+
   def CustomizeBrowserOptions(self, options):
     # Needed to allow XHR requests to return stream objects.
     options.AppendExtraBrowserArgs(
         ['--enable-experimental-web-platform-features',
          '--disable-gesture-requirement-for-media-playback'])