Add new trivial sites memory benchmark.

tools/perf/benchmarks/memory.py

Index: tools/perf/benchmarks/memory.py
diff --git a/tools/perf/benchmarks/memory.py b/tools/perf/benchmarks/memory.py
index d669a12cafd5c51e9f136092e2b2555b2d8bfe42..2ed046cef7f06025fa5914877a54038c68269f08 100644
--- a/tools/perf/benchmarks/memory.py
+++ b/tools/perf/benchmarks/memory.py
@@ -51,6 +51,28 @@ class _MemoryInfra(perf_benchmark.PerfBenchmark):
     options.clear_sytem_cache_for_browser_and_profile_on_start = True
 
 
+@benchmark.Enabled('mac')
+@benchmark.Enabled('win')

[nednguyen, 2017/03/14 01:03:21]

Can you also add:
@benchmark.Owner(emails=['erikchen@chromium.org']) ?

+class MemoryBenchmarkTrivialSitesDesktop(_MemoryInfra):
+  """Measure memory usage on trivial sites."""
+  page_set = page_sets.TrivialSitesStorySet
+  options = {'pageset_repeat': 5}
+
+  @classmethod
+  def Name(cls):
+    return 'memory.desktop'
+
+  @classmethod
+  def ShouldTearDownStateAfterEachStoryRun(cls):
+    return True
+
+  @classmethod
+  def ValueCanBeAddedPredicate(cls, value, is_first_result):
+    # TODO(crbug.com/610962): Remove this stopgap when the perf dashboard
+    # is able to cope with the data load generated by TBMv2 metrics.
+    return not _IGNORED_STATS_RE.search(value.name)
+
+
 @benchmark.Enabled('android')  # catapult:#3176
 class MemoryBenchmarkTop10Mobile(_MemoryInfra):
   """Measure foreground/background memory on top 10 mobile page set.