Let MetricsService know about some Android Activities

base/metrics/histogram_delta_serialization.cc

Index: base/metrics/histogram_delta_serialization.cc
diff --git a/base/metrics/histogram_delta_serialization.cc b/base/metrics/histogram_delta_serialization.cc
index 924916db76e462b38ee08da5e15c369d845b07ef..6df2fc7603b42930ccd7a4a9795edb0b3c67c738 100644
--- a/base/metrics/histogram_delta_serialization.cc
+++ b/base/metrics/histogram_delta_serialization.cc
@@ -66,7 +66,7 @@ void HistogramDeltaSerialization::PrepareAndSerializeDeltas(
   // the histograms, so that the receiving process can distinguish them from the
   // local histograms.
   histogram_snapshot_manager_.PrepareDeltas(
-      Histogram::kIPCSerializationSourceFlag, false);
+      Histogram::kIPCSerializationSourceFlag, Histogram::kNoFlags);
   serialized_deltas_ = NULL;
 }