LogDog: Update to archival V2.

common/api/logdog_coordinator/logs/v1/state.proto

Index: common/api/logdog_coordinator/logs/v1/state.proto
diff --git a/common/api/logdog_coordinator/logs/v1/state.proto b/common/api/logdog_coordinator/logs/v1/state.proto
index f916c9dc5e7ad21a5db8c1e79d1a24b8032f9ce0..c27e027afab5e2d8532939d90b6ca9a18efad7de 100644
--- a/common/api/logdog_coordinator/logs/v1/state.proto
+++ b/common/api/logdog_coordinator/logs/v1/state.proto
@@ -17,12 +17,10 @@ message LogStreamState {
 
 	// The time when the log stream was registered with the Coordinator.
 	google.protobuf.Timestamp created = 2;
-	// The time when the log stream's state was last updated.
-	google.protobuf.Timestamp updated = 3;
 
 	// The stream index of the log stream's terminal message. If the value is -1,
   // the log is still streaming.
-	int64 terminal_index = 4;
+	int64 terminal_index = 3;

[Vadim Sh., 2016/04/07 01:21:32]

are you sure changing what tag means won't backfire? Both pRPC server and client
must be updated at the same time. 

[dnj, 2016/04/11 17:20:03]

The only thing that consumes this ATM is JSONPB web UI, so as long as the field
name hasn't changed, we should be good.

 
   // ArchiveInfo contains archive details for the log stream.
   message ArchiveInfo {
@@ -36,13 +34,16 @@ message LogStreamState {
     // If true, all log entries between 0 and terminal_index were archived. If
     // false, this indicates that the log stream was not completely loaded into
     // intermediate storage when the archival interval expired.
-    bool whole = 4;
+    bool complete = 4;
+
+    // The number of log 
+    int64 log_entry_count = 5;
   }
   // If non-nil, the log stream is archived, and this field contains archival
   // details.
-  ArchiveInfo archive = 5;
+  ArchiveInfo archive = 4;
 
 	// Indicates the purged state of a log. A log that has been purged is only
   // acknowledged to administrative clients.
-	bool purged = 6;
+	bool purged = 5;
 }