Cast: Add GetStats() extensions API.

media/cast/logging/logging_stats.cc

Index: media/cast/logging/logging_stats.cc
diff --git a/media/cast/logging/logging_stats.cc b/media/cast/logging/logging_stats.cc
index e9e6d729b5eb980c03a5ab005c99630ae9f1451a..c45410a4b1761375c049ded9556f73bd1a0bb2a5 100644
--- a/media/cast/logging/logging_stats.cc
+++ b/media/cast/logging/logging_stats.cc
@@ -75,8 +75,8 @@ void LoggingStats::InsertBaseFrameEvent(const base::TimeTicks& time_of_event,
     stats.event_counter = 1;
     frame_stats_.insert(std::make_pair(event, stats));
   } else {
-    it->second.last_event_time = time_of_event;
     ++(it->second.event_counter);
+    it->second.last_event_time = time_of_event;
   }
 }
 
@@ -101,6 +101,7 @@ void LoggingStats::InsertPacketEvent(const base::TimeTicks& time_of_event,
     // Add to an existing event.
     it->second.sum_size += size;
     ++(it->second.event_counter);
+    it->second.last_event_time = time_of_event;
   }
 }
 
@@ -133,12 +134,35 @@ void LoggingStats::InsertGenericEvent(const base::TimeTicks& time_of_event,
   }
 }
 
-FrameStatsMap LoggingStats::GetFrameStatsData() const {
-  return frame_stats_;
+FrameStatsMap LoggingStats::GetFrameStatsData(EventMediaType media_type) const {
+  DCHECK(media_type == AUDIO_EVENT || media_type == VIDEO_EVENT);
+
+  FrameStatsMap frame_map_to_return;
+  for (FrameStatsMap::const_iterator it = frame_stats_.begin();
+       it != frame_stats_.end();
+       ++it) {
+    if (GetEventMediaType(it->first) == media_type) {
+      frame_map_to_return.insert(std::make_pair(it->first, it->second));
+    }
+  }
+
+  return frame_map_to_return;
 }
 
-PacketStatsMap LoggingStats::GetPacketStatsData() const {
-  return packet_stats_;
+PacketStatsMap LoggingStats::GetPacketStatsData(
+    EventMediaType media_type) const {
+  DCHECK(media_type == AUDIO_EVENT || media_type == VIDEO_EVENT);
+
+  PacketStatsMap packet_map_to_return;
+  for (PacketStatsMap::const_iterator it = packet_stats_.begin();
+       it != packet_stats_.end();
+       ++it) {
+    if (GetEventMediaType(it->first) == media_type) {
+      packet_map_to_return.insert(std::make_pair(it->first, it->second));
+    }
+  }
+
+  return packet_map_to_return;
 }
 
 GenericStatsMap LoggingStats::GetGenericStatsData() const {