Support getting and deleting token for Instance ID.

google_apis/gcm/engine/instance_id_get_token_request_handler.h

+// Copyright 2015 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 GOOGLE_APIS_GCM_ENGINE_INSTANCE_ID_GET_TOKEN_REQUEST_HANDLER_H_
+#define GOOGLE_APIS_GCM_ENGINE_INSTANCE_ID_GET_TOKEN_REQUEST_HANDLER_H_
+
+#include <map>
+#include <string>
+
+#include "google_apis/gcm/engine/registration_request.h"
+
+namespace gcm {
+
+// Used to obtain a token based on Instance ID.
+class GCM_EXPORT InstanceIDGetTokenRequestHandler :
+    public RegistrationRequest::CustomRequestHandler {
+ public:
+  InstanceIDGetTokenRequestHandler(
+      const std::string& instance_id,
+      const std::string& authorized_entity,
+      const std::string& scope,
+      int gcm_version,
+      const std::map<std::string, std::string>& options);
+  ~InstanceIDGetTokenRequestHandler() override;
+
+   // RegistrationRequest overrides:
+  void BuildRequestBody(std::string* body) override;
+
+ private:
+  std::string instance_id_;
+  std::string authorized_entity_;
+  std::string scope_;
+  int gcm_version_;
+  std::map<std::string, std::string> options_;
+
+  DISALLOW_COPY_AND_ASSIGN(InstanceIDGetTokenRequestHandler);
+};
+
+}  // namespace gcm
+
+#endif  // GOOGLE_APIS_GCM_ENGINE_INSTANCE_ID_GET_TOKEN_REQUEST_HANDLER_H_