Propagate connection info to Blimp android UI.

blimp/client/core/session/connection_status.cc

Index: blimp/client/core/session/connection_status.cc
diff --git a/blimp/client/core/session/connection_status.cc b/blimp/client/core/session/connection_status.cc
new file mode 100644
index 0000000000000000000000000000000000000000..95393201a9842f51f007d4c56c76faaa52151349
--- /dev/null
+++ b/blimp/client/core/session/connection_status.cc
@@ -0,0 +1,50 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "blimp/client/core/session/connection_status.h"
+
+#include "base/metrics/histogram_macros.h"
+
+namespace blimp {
+namespace client {
+
+ConnectionStatus::ConnectionStatus()
+    : is_connected_(false), weak_factory_(this) {}
+
+ConnectionStatus::~ConnectionStatus() = default;
+
+void ConnectionStatus::AddObserver(NetworkEventObserver* observer) {
+  connection_observers_.AddObserver(observer);
+}
+
+void ConnectionStatus::RemoveObserver(NetworkEventObserver* observer) {
+  connection_observers_.RemoveObserver(observer);
+}
+
+void ConnectionStatus::OnAssignmentResult(int result,
+                                          const Assignment& assignment) {
+  if (result == AssignmentRequestResult::ASSIGNMENT_REQUEST_RESULT_OK) {
+    engine_endpoint_ = assignment.engine_endpoint;
+  }
+}
+
+base::WeakPtr<ConnectionStatus> ConnectionStatus::GetWeakPtr() {
+  return weak_factory_.GetWeakPtr();
+}
+
+void ConnectionStatus::OnConnected() {
+  is_connected_ = true;
+  UMA_HISTOGRAM_BOOLEAN("Blimp.Connected", true);
+  FOR_EACH_OBSERVER(NetworkEventObserver, connection_observers_, OnConnected());
+}
+
+void ConnectionStatus::OnDisconnected(int result) {
+  is_connected_ = false;
+  UMA_HISTOGRAM_BOOLEAN("Blimp.Connected", false);
+  FOR_EACH_OBSERVER(NetworkEventObserver, connection_observers_,
+                    OnDisconnected(result));
+}
+
+}  // namespace client
+}  // namespace blimp