Add net log to UploadDataStream.

net/log/net_log_event_type_list.h

Index: net/log/net_log_event_type_list.h
diff --git a/net/log/net_log_event_type_list.h b/net/log/net_log_event_type_list.h
index 6a26dc65bc0654a1fe8068d30257a12b388a7720..de74dff9a3fb95218a5cf0b2892ca171b61263fb 100644
--- a/net/log/net_log_event_type_list.h
+++ b/net/log/net_log_event_type_list.h
@@ -3019,3 +3019,34 @@ EVENT_TYPE(SAFE_BROWSING_CHECKING_URL)
 //                       "resumed_redirect", "unchecked_redirect">
 //  }
 EVENT_TYPE(SAFE_BROWSING_DEFERRED)
+
+// Marks start of UploadDataStream that is logged on initialization.
+// Contains the following infromation:

[mmenke, 2016/08/16 15:40:06]

"The END phase contains the following parameters:"

[maksims (do not use this acc), 2016/08/16 18:45:37]

Done.

+// {
+//   "result": <The initialization step result>,
+//   "is_eof": <Shows whether there is an end of file or not>
+//   "is_chunked": <Shows whether data is chunked or not>.
+// }
+EVENT_TYPE(UPLOAD_DATA_STREAM_INIT)
+
+// Marks start of UploadDataStream::Read.
+// Contains the following information:
+// {
+//   "result": <Result of reading. Should be 0 at this stage>
+//   "current_position": <Shows current read position>,
+//   "total_size": <Shows total content length>,
+//   "is_eof": <Shows whether there is an end of file or not>,
+//   "is_chunked": <Shows whether data is chunked or not>.
+// }
+EVENT_TYPE(UPLOAD_DATA_STREAM_READ)
+
+// Marks start of UploadDataStream::Read.
+// Contains the following information:

[mmenke, 2016/08/16 15:40:06]

"The BEGIN phase contains the following parameters:"

[maksims (do not use this acc), 2016/08/16 18:45:37]

Done.

+// {
+//   "result": <Result of reading. Result > 0 is bytes read. Result == 0 means
+//   the end of file. Result < 0 means an error.>
+//   "current_position": <Shows current read position>,
+//   "total_size": <Shows total content length>,
+//   "is_eof": <Shows whether there is an end of file or not>,
+//   "is_chunked": <Shows whether data is chunked or not>.

[mmenke, 2016/08/16 15:40:06]

only current_position is still here.

+// }

[mmenke, 2016/08/16 15:40:06]

document end phase paremter, which just has result.

[maksims (do not use this acc), 2016/08/16 18:45:37]

Done.