re-enable PCv2 on non-ref Android

tools/perf/benchmarks/page_cycler_v2.py

Index: tools/perf/benchmarks/page_cycler_v2.py
diff --git a/tools/perf/benchmarks/page_cycler_v2.py b/tools/perf/benchmarks/page_cycler_v2.py
index 9e0d73d52c81cc822b1a91137df112d755934a97..3fd81079ed452bb171d3266f256abe908ef47923 100644
--- a/tools/perf/benchmarks/page_cycler_v2.py
+++ b/tools/perf/benchmarks/page_cycler_v2.py
@@ -28,7 +28,7 @@ class _PageCyclerV2(perf_benchmark.PerfBenchmark):
     return tbm_options
 
 
-@benchmark.Disabled('win', 'android')  # crbug.com/615178
+@benchmark.Disabled('win')  # crbug.com/615178
 class PageCyclerV2Typical25(_PageCyclerV2):
   """Page load time benchmark for a 25 typical web pages.
 
@@ -41,6 +41,11 @@ class PageCyclerV2Typical25(_PageCyclerV2):
   def Name(cls):
     return 'page_cycler_v2.typical_25'
 
+  @classmethod
+  def ShouldDisable(cls, possible_browser):  # crbug.com/615178
+    return (possible_browser.browser_type == 'reference' and
+        possible_browser.platform.GetOSName() == 'android')
+
   def CreateStorySet(self, options):
     return page_sets.Typical25PageSet(run_no_page_interactions=True,
         cache_temperatures=[