Revert of Disable system_health.common_desktop on Mac and Win10 perf bots

tools/perf/benchmarks/system_health.py

 # Copyright 2016 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.
 
 import re
 
 from core import perf_benchmark
 from telemetry import benchmark
 from telemetry.timeline import chrome_trace_category_filter
 from telemetry.web_perf import timeline_based_measurement
@@ skipping 31 matching lines @@
     return page_sets.SystemHealthStorySet(platform=self.PLATFORM)
 
   @classmethod
   def ShouldTearDownStateAfterEachStoryRun(cls):
     return True
 
   @classmethod
   def Name(cls):
     return 'system_health.common_%s' % cls.PLATFORM
 
-@benchmark.Disabled('win10') # crbug.com/657665, crbug.com/653893
-@benchmark.Disabled('mac') # crbug.com/664661
+
 class DesktopCommonSystemHealth(_CommonSystemHealthBenchmark):
   """Desktop Chrome Energy System Health Benchmark."""
   PLATFORM = 'desktop'
 
   @classmethod
   def ShouldDisable(cls, possible_browser):
     # http://crbug.com/624355 (reference builds).
     return (possible_browser.platform.GetDeviceTypeName() != 'Desktop' or
             possible_browser.browser_type == 'reference')
 
@@ skipping 121 matching lines @@
   and load a blank page with multiprocess enabled.
   """
 
   def SetExtraBrowserOptions(self, options):
     options.AppendExtraBrowserArgs(
         ['--webview-sandboxed-renderer'])
 
   @classmethod
   def Name(cls):
     return 'system_health.webview_startup_multiprocess'