Added Net logging to FileStream.

net/base/net_log_event_type_list.h

Index: net/base/net_log_event_type_list.h
diff --git a/net/base/net_log_event_type_list.h b/net/base/net_log_event_type_list.h
index 44f6f22bbf26a48445921100295fd301d65fb8cc..6dc12d7bc3bfb3fe232f2fdf76ac798e11ce3746 100644
--- a/net/base/net_log_event_type_list.h
+++ b/net/base/net_log_event_type_list.h
@@ -1407,3 +1407,40 @@ EVENT_TYPE(HTTP_PIPELINED_CONNECTION_RECEIVED_HEADERS)
 //     "must_close": <True if the pipeline must shut down>,
 //   }
 EVENT_TYPE(HTTP_PIPELINED_CONNECTION_STREAM_CLOSED)
+
+// ------------------------------------------------------------------------
+// FileStream events.
+// ------------------------------------------------------------------------
+
+// This event is created when a file stream is associated with a NetLog source.
+// It indicates what file stream event source is used.
+//   {
+//     "source_dependency": <Source id of the file stream>,
+//   }
+EVENT_TYPE(FILE_STREAM_SOURCE)
+
+// This event is created when a file stream is associated with a NetLog source.
+// It indicates what event source owns the file stream source.
+//   {
+//     "source_dependency": <Source id of the owner of the file stream>,
+//   }
+EVENT_TYPE(FILE_STREAM_BOUND_TO_OWNER)
+
+// This event lasts the lifetime of a file stream.
+EVENT_TYPE(FILE_STREAM_ALIVE)

[mmenke, 2012/01/31 18:28:43]

nit:  Suggest putting these events in rough order of occurance.

[ahendrickson, 2012/01/31 20:12:41]

Done.

+
+// This event is created when a file stream is opened.
+//   {
+//     "file_name".
+//   }
+EVENT_TYPE(FILE_STREAM_OPEN)
+
+// This event is created when a file stream is closed.
+EVENT_TYPE(FILE_STREAM_CLOSE)

[mmenke, 2012/01/31 18:28:43]

I'd suggest you use begin/end events for OPEN rather than OPEN/CLOSE, if OPEN
events can't be nested, and we'll only be logging one CLOSE per OPEN.  It's been
my experience that begin/end events make lots a lot easier to visually parse.

[ahendrickson, 2012/01/31 20:12:41]

I do use begin/end events for OPEN.

However, I want a separate CLOSE event because it can legally occur when the
file is not open.

+
+// This event is created when a file stream operation has an error.
+//   {
+//     "operation": open, write, close, etc.
+//     "sys_error": OS-dependent error code.

[mmenke, 2012/01/30 22:38:39]

nit:  os_error (And add net_error)

[ahendrickson, 2012/01/31 20:12:41]

Done.

+//   }
+EVENT_TYPE(FILE_STREAM_ERROR)