Send debug event info on Commit requests, not just GetUpdates requests.

sync/engine/commit.cc

Index: sync/engine/commit.cc
diff --git a/sync/engine/commit.cc b/sync/engine/commit.cc
index c7af4491f10661c7ecfe22b45f9446feb82a3100..a8db1a41ee3821cad3572ad1b044b88075306410 100644
--- a/sync/engine/commit.cc
+++ b/sync/engine/commit.cc
@@ -110,6 +110,11 @@ SyncerError Commit::PostAndProcessResponse(
   }
   session->mutable_status_controller()->set_commit_request_types(request_types);
 
+  if (session->context()->debug_info_getter()) {
+    sync_pb::DebugInfo* debug_info = message_.mutable_debug_info();
+    session->context()->debug_info_getter()->GetDebugInfo(debug_info);
+  }
+
   DVLOG(1) << "Sending commit message.";
   TRACE_EVENT_BEGIN0("sync", "PostCommit");
   const SyncerError post_result = SyncerProtoUtil::PostClientToServerMessage(
@@ -136,6 +141,12 @@ SyncerError Commit::PostAndProcessResponse(
     return SERVER_RESPONSE_VALIDATION_FAILED;
   }
 
+  if (session->context()->debug_info_getter()) {
+    // Clear debug info now that we have successfully sent it to the server.
+    DVLOG(1) << "Clearing client debug info.";
+    session->context()->debug_info_getter()->ClearDebugInfo();
+  }
+
   // Let the contributors process the responses to each of their requests.
   SyncerError processing_result = SYNCER_OK;
   for (std::map<ModelType, SyncDirectoryCommitContribution*>::iterator it =