Push API: send and receive IPC messages for registration.

content/public/common/push_messaging_status.h

+// Copyright 2014 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.
+
+#ifndef CONTENT_PUBLIC_COMMON_PUSH_MESSAGING_PUSH_MESSAGING_STATUS_H_
+#define CONTENT_PUBLIC_COMMON_PUSH_MESSAGING_PUSH_MESSAGING_STATUS_H_
+
+namespace content {
+
+// Generic push messaging operation statuses.

[Peter Beverloo, 2014/04/01 14:53:18]

nit: This comment doesn't add a lot of value.

[Michael van Ouwerkerk, 2014/04/02 14:25:15]

Done.

+enum PushMessagingStatus {
+  // Operation succeeded.
+  PUSH_MESSAGING_STATUS_OK,
+  // Invalid parameter.
+  PUSH_MESSAGING_STATUS_INVALID_PARAMETER,
+  // Profile not signed in.

[Peter Beverloo, 2014/04/01 14:53:18]

Can you add a TODO for removing this value once we no longer require users to be
logged in when registering with GCM?

[Michael van Ouwerkerk, 2014/04/02 14:25:15]

Done.

+  PUSH_MESSAGING_STATUS_NOT_SIGNED_IN,
+  // Previous asynchronous operation is still pending. Certain operations, like
+  // register, are only allowed one at a time.
+  PUSH_MESSAGING_STATUS_OPERATION_PENDING,
+  // Network socket error.
+  PUSH_MESSAGING_STATUS_NETWORK_ERROR,
+  // Problem at the server.
+  PUSH_MESSAGING_STATUS_SERVER_ERROR,
+  // Exceeded the specified TTL during message sending.
+  PUSH_MESSAGING_STATUS_TTL_EXCEEDED,
+  // Other errors.
+  PUSH_MESSAGING_STATUS_UNKNOWN_ERROR,
+};
+
+const char* PushMessagingStatusToString(PushMessagingStatus status);

[Peter Beverloo, 2014/04/01 14:53:18]

Do you expect this will be used outside of push_messaging_dispatcher.cc? If we
won't, it'd be better to just define this as a function in an anonymous
namespace in that file.

[Michael van Ouwerkerk, 2014/04/02 14:25:15]

Done.

+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_COMMON_PUSH_MESSAGING_PUSH_MESSAGING_STATUS_H_