Revert of [telemetry] Trace config should be used to disable periodic dumps

tools/perf/benchmarks/oortonline.py

Index: tools/perf/benchmarks/oortonline.py
diff --git a/tools/perf/benchmarks/oortonline.py b/tools/perf/benchmarks/oortonline.py
index be3ace0ac4bcf20a0825c68c999c693c26d3dac4..984cef0a2a7584be03054fc394d719d7753a60e8 100644
--- a/tools/perf/benchmarks/oortonline.py
+++ b/tools/perf/benchmarks/oortonline.py
@@ -10,7 +10,6 @@
 from telemetry.value import scalar
 from telemetry.value import improvement_direction
 from telemetry.timeline import chrome_trace_category_filter
-from telemetry.timeline import chrome_trace_config
 from telemetry.web_perf import timeline_based_measurement
 from telemetry.web_perf.metrics import v8_gc_latency
 from telemetry.web_perf.metrics import smoothness
@@ -60,6 +59,13 @@
   Info: http://v8project.blogspot.de/2015/10/jank-busters-part-one.html
   """
 
+  def SetExtraBrowserOptions(self, options):
+    options.AppendExtraBrowserArgs([
+        # TODO(perezju): Temporary workaround to disable periodic memory dumps.
+        # See: http://crbug.com/513692
+        '--enable-memory-benchmarking',
+    ])
+
   def CreateStorySet(self, options):
     return page_sets.OortOnlineTBMPageSet()
 
@@ -78,9 +84,6 @@
     options.SetLegacyTimelineBasedMetrics([v8_gc_latency.V8GCLatency(),
                                      smoothness.SmoothnessMetric(),
                                      memory_timeline.MemoryTimelineMetric()])
-    # Setting an empty memory dump config disables periodic dumps.
-    options.config.chrome_trace_config.SetMemoryDumpConfig(
-        chrome_trace_config.MemoryDumpConfig())
     return options
 
   @classmethod