perf: Add a power benchmark for pages with heavy ads

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 1974cadad023ace75cbb5712c4b0676817e0418e..aa93e267d6f80307ae032e74de7572a2d7a52ca6 100644
--- a/tools/perf/benchmarks/power.py
+++ b/tools/perf/benchmarks/power.py
@@ -39,6 +39,20 @@ class PowerTypical10Mobile(perf_benchmark.PerfBenchmark):
 
 
 @benchmark.Enabled('android')
+class PowerToughAdCases(perf_benchmark.PerfBenchmark):
+  """Android power test with tough ad pages."""
+  test = power.Power
+  page_set = page_sets.ToughAdCasesPageSet
+
+  def SetExtraBrowserOptions(self, options):
+    options.full_performance_mode = False
+
+  @classmethod
+  def Name(cls):
+    return 'power.tough_ad_cases'
+
+
+@benchmark.Enabled('android')
 @benchmark.Disabled('all')
 class PowerTypical10MobileReload(perf_benchmark.PerfBenchmark):
   """Android typical 10 mobile power reload test."""