[PerfBenchmarks] Disable power.tough_ad_cases on Android

tools/perf/benchmarks/power.py

Index: tools/perf/benchmarks/power.py
diff --git a/tools/perf/benchmarks/power.py b/tools/perf/benchmarks/power.py
index 10c94618ebf1245be61542a7f70817f0b61132bd..3c704213fd81049be159d40810a6e4071c7f3bd4 100644
--- a/tools/perf/benchmarks/power.py
+++ b/tools/perf/benchmarks/power.py
@@ -47,8 +47,10 @@ class PowerTypical10Mobile(perf_benchmark.PerfBenchmark):
   def Name(cls):
     return 'power.typical_10_mobile'
 
-
-@benchmark.Enabled('android')
+# This benchmark runs only on android by it is disabled on android as well

[eakuefner, 2017/01/25 00:11:33]

nit: s/by/but/ ?

[fmeawad, 2017/01/25 00:29:54]

Done.

+# because of http://crbug.com/683238
+# @benchmark.Enabled('android')
+@benchmark.Disabled('all')
 @benchmark.Disabled('android-webview')  # http://crbug.com/622300
 class PowerToughAdCases(perf_benchmark.PerfBenchmark):
   """Android power test with tough ad pages."""