Replace memory.long_running_idle_gmail with TBM based version.

tools/perf/benchmarks/memory.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.
 
 from core import perf_benchmark
 
 from measurements import memory
 import page_sets
 from telemetry import benchmark
 
@@ skipping 20 matching lines @@
 
   @classmethod
   def Name(cls):
     return 'memory.top_7_stress'
 
   @classmethod
   def ShouldDisable(cls, possible_browser):
     return cls.IsSvelte(possible_browser)  # http://crbug.com/555092
 
 
-class MemoryLongRunningIdleGmail(perf_benchmark.PerfBenchmark):
-  """Use (recorded) real world web sites and measure memory consumption
-  of long running idle Gmail page """
-  test = memory.Memory
-  page_set = page_sets.LongRunningIdleGmailPageSet
-
-  @classmethod
-  def Name(cls):
-    return 'memory.long_running_idle_gmail'
-
-
 @benchmark.Disabled('android')  # crbug.com/542682
 class MemoryLongRunningIdleGmailBackground(perf_benchmark.PerfBenchmark):
   """Use (recorded) real world web sites and measure memory consumption
   of long running idle Gmail page in background tab"""
   test = memory.Memory
   page_set = page_sets.LongRunningIdleGmailBackgroundPageSet
 
   @classmethod
   def Name(cls):
     return 'memory.long_running_idle_gmail_background'