Add compile time checks against longs being used in IPC structs on 32 bit Android.

media/cast/logging/logging_defines.h

Index: media/cast/logging/logging_defines.h
diff --git a/media/cast/logging/logging_defines.h b/media/cast/logging/logging_defines.h
index 455f85dd8618448c4400290d27749718b8c78b48..7d17507367345aa0c91bb9fa9925b111947db3f1 100644
--- a/media/cast/logging/logging_defines.h
+++ b/media/cast/logging/logging_defines.h
@@ -64,7 +64,7 @@ struct FrameEvent {
   int height;
 
   // Size of encoded frame in bytes. Only set for FRAME_ENCODED event.
-  size_t size;
+  uint32_t size;
 
   // Time of event logged.
   base::TimeTicks timestamp;
@@ -100,7 +100,7 @@ struct PacketEvent {
   uint32_t frame_id;
   uint16_t max_packet_id;
   uint16_t packet_id;
-  size_t size;
+  uint32_t size;
 
   // Time of event logged.
   base::TimeTicks timestamp;