Reland: Track memory consumption of SP on top 7 sites

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 b5eb386b4e08d1b1fbb2c9b89a775f18fab6e089..44b900a9233bd7a0a6af1f33e2e6ca327e0d11f3 100644
--- a/tools/perf/benchmarks/memory.py
+++ b/tools/perf/benchmarks/memory.py
@@ -26,3 +26,18 @@ class MemoryTop7Stress(benchmark.Benchmark):
   @classmethod
   def Name(cls):
     return 'memory.top_7_stress'
+
+
+class MemoryTop7StressWithSlimmingPaint(benchmark.Benchmark):
+  """Use (recorded) real world web sites and measure memory consumption,
+  with --enable--slimming-paint."""
+
+  test = memory.Memory
+  page_set = page_sets.Top7StressPageSet
+
+  def CustomizeBrowserOptions(self, options):
+    options.AppendExtraBrowserArgs(['--enable-slimming-paint'])
+
+  @classmethod
+  def Name(cls):
+    return 'memory.top_7_stress_slimming_paint'