Incorporating logging into Cast

media/cast/logging/logging_impl.h

Index: media/cast/logging/logging_impl.h
diff --git a/media/cast/logging/logging_impl.h b/media/cast/logging/logging_impl.h
index 568bff5360ec749970687e410968021b0353c2bc..015047092bbff5c2eb98d4a364c5cb96db88e1f6 100644
--- a/media/cast/logging/logging_impl.h
+++ b/media/cast/logging/logging_impl.h
@@ -10,6 +10,8 @@
 // 2. UMA stats.
 // 3. Tracing of raw events.
 
+#include "base/memory/ref_counted.h"
+#include "base/task_runner.h"
 #include "media/cast/logging/logging_defines.h"
 #include "media/cast/logging/logging_raw.h"
 #include "media/cast/logging/logging_stats.h"
@@ -17,9 +19,11 @@
 namespace media {
 namespace cast {
 
-class LoggingImpl {
+// Should only be called from the main thread.
+class LoggingImpl : public base::NonThreadSafe {
  public:
   LoggingImpl(base::TickClock* clock,
+              scoped_refptr<base::TaskRunner> main_thread_proxy,
               bool enable_data_collection,
               bool enable_uma_stats,
               bool enable_tracing);
@@ -42,7 +46,7 @@ class LoggingImpl {
                          uint8 frame_id,
                          uint16 packet_id,
                          uint16 max_packet_id,
-                         int size);
+                         size_t size);
   void InsertGenericEvent(CastLoggingEvent event, int value);
 
   // Get raw data.
@@ -57,6 +61,7 @@ class LoggingImpl {
   void Reset();
 
  private:
+  scoped_refptr<base::TaskRunner> main_thread_proxy_;
   LoggingRaw raw_;
   LoggingStats stats_;
   bool enable_data_collection_;