Fixed channel switch when user decides to switch to another channel in

chromeos/dbus/fake_update_engine_client.cc

Index: chromeos/dbus/fake_update_engine_client.cc
diff --git a/chromeos/dbus/fake_update_engine_client.cc b/chromeos/dbus/fake_update_engine_client.cc
index e0c46a4efdac19d92224c85efb08395622deedb1..53314e2381e36830d44f8cc818883f6302e3d486 100644
--- a/chromeos/dbus/fake_update_engine_client.cc
+++ b/chromeos/dbus/fake_update_engine_client.cc
@@ -10,6 +10,7 @@ FakeUpdateEngineClient::FakeUpdateEngineClient()
     : update_check_result_(UpdateEngineClient::UPDATE_RESULT_SUCCESS),
       can_rollback_stub_result_(false),
       reboot_after_update_call_count_(0),
+      request_update_check_call_count_(0),
       rollback_call_count_(0),
       can_rollback_call_count_(0) {
 }
@@ -29,11 +30,12 @@ void FakeUpdateEngineClient::RemoveObserver(Observer* observer) {
 }
 
 bool FakeUpdateEngineClient::HasObserver(Observer* observer) {
-  return false;
+  return observers_.HasObserver(observer);
 }
 
 void FakeUpdateEngineClient::RequestUpdateCheck(
     const UpdateCheckCallback& callback) {
+  request_update_check_call_count_++;
   callback.Run(update_check_result_);
 }