Set up a parallel memory.memory_health_quick_tbmv2 benchmark

tools/perf/benchmarks/memory_infra.py

Index: tools/perf/benchmarks/memory_infra.py
diff --git a/tools/perf/benchmarks/memory_infra.py b/tools/perf/benchmarks/memory_infra.py
index 40f09ad89e465ad4fa468da18a3ba623007c9e1e..033e1d6b24bb6a84eba9861215d3ae8fcdd8c0c6 100644
--- a/tools/perf/benchmarks/memory_infra.py
+++ b/tools/perf/benchmarks/memory_infra.py
@@ -22,6 +22,9 @@ class _MemoryInfra(perf_benchmark.PerfBenchmark):
   is part of chrome tracing, and extracts it using timeline-based measurements.
   """
 
+  # Subclasses can override this to use TBMv2 instead of TBMv1.
+  TBM_VERSION = 1
+
   def SetExtraBrowserOptions(self, options):
     options.AppendExtraBrowserArgs([
         # TODO(perezju): Temporary workaround to disable periodic memory dumps.
@@ -37,17 +40,20 @@ class _MemoryInfra(perf_benchmark.PerfBenchmark):
     tbm_options = timeline_based_measurement.Options(
         overhead_level=trace_memory)
     tbm_options.config.enable_android_graphics_memtrack = True
+    if self.TBM_VERSION == 1:
+      # TBMv1 (see telemetry/telemetry/web_perf/metrics/memory_timeline.py
+      # in third_party/catapult).
+      tbm_options.SetLegacyTimelineBasedMetrics((
+          memory_timeline.MemoryTimelineMetric(),
+      ))
+    elif self.TBM_VERSION == 2:
+      # TBMv2 (see tracing/tracing/metrics/system_health/memory_metric.html
+      # in third_party/catapult).
+      tbm_options.SetTimelineBasedMetric('memoryMetric')
+    else:
+      raise Exception('Unrecognized TBM version: %s' % self.TBM_VERSION)
     return tbm_options
 
-  @classmethod
-  def HasTraceRerunDebugOption(cls):
-    return True
-
-  def SetupBenchmarkDefaultTraceRerunOptions(self, tbm_options):
-    tbm_options.SetLegacyTimelineBasedMetrics((
-        memory_timeline.MemoryTimelineMetric(),
-    ))
-
 
 # TODO(bashi): Workaround for http://crbug.com/532075
 # @benchmark.Enabled('android') shouldn't be needed.
@@ -78,6 +84,23 @@ class MemoryHealthPlan(MemoryHealthQuick):
     return 'memory.memory_health_plan'
 
 
+@benchmark.Enabled('android')
+class TBMv2MemoryBenchmarkTop10Mobile(MemoryHealthQuick):
+  """Timeline based benchmark for the Memory Health Plan based on TBMv2.
+
+  This is a temporary benchmark to compare the new TBMv2 memory metric
+  (memory_metric.html) with the existing TBMv1 one (memory_timeline.py). Once
+  all issues associated with the TBMv2 metric are resolved, all memory
+  benchmarks (including the ones in this file) will switch to use it instead
+  of the TBMv1 metric and this temporary benchmark will be removed.

[Primiano Tucci (use gerrit), 2016/04/25 16:14:55]

Add a link to crbug.com/606361 which has all the context plz.

[petrcermak, 2016/04/25 16:31:23]

Done.

+  """
+  TBM_VERSION = 2
+
+  @classmethod
+  def Name(cls):
+    return 'memory.top_10_mobile_tbmv2'
+
+
 # TODO(bashi): Workaround for http://crbug.com/532075
 # @benchmark.Enabled('android') shouldn't be needed.
 @benchmark.Enabled('android')