Support getting and deleting token for Instance ID.

google_apis/gcm/engine/instance_id_get_token_request_handler.cc

+// 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.
+
+#include "google_apis/gcm/engine/instance_id_get_token_request_handler.h"
+
+#include "base/strings/string_number_conversions.h"
+#include "google_apis/gcm/base/gcm_util.h"
+#include "net/url_request/url_request_context_getter.h"
+
+namespace gcm {
+
+namespace {
+
+// Request constants.
+const char kAuthorizedEntityKey[] = "sender";
+const char kGMSVersionKey[] = "gmsv";
+const char kInstanceIDKey[] = "appid";
+const char kScopeKey[] = "scope";
+// Prefix that needs to be added for each option key.
+const char kOptionKeyPrefix[] = "X-";
+
+}  // namespace
+
+InstanceIDGetTokenRequestHandler::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)
+    : instance_id_(instance_id),
+      authorized_entity_(authorized_entity),
+      scope_(scope),
+      gcm_version_(gcm_version),
+      options_(options) {
+  DCHECK(!instance_id.empty() && !authorized_entity.empty() && !scope.empty());

[Nicolas Zea, 2015/05/26 16:39:14]

nit: I think it's cleaner to split this up into multiple dchecks (that way if it
fires, you know which one failed)

[jianli, 2015/05/26 20:49:39]

Done.

+}
+
+InstanceIDGetTokenRequestHandler::~InstanceIDGetTokenRequestHandler() {}
+
+void InstanceIDGetTokenRequestHandler::BuildRequestBody(std::string* body){
+  BuildFormEncoding(kScopeKey, scope_, body);
+  for (auto iter = options_.begin(); iter != options_.end(); ++iter)
+    BuildFormEncoding(kOptionKeyPrefix + iter->first, iter->second, body);
+  BuildFormEncoding(kGMSVersionKey, base::IntToString(gcm_version_), body);
+  BuildFormEncoding(kInstanceIDKey, instance_id_, body);
+  BuildFormEncoding(kAuthorizedEntityKey, authorized_entity_, body);
+}
+
+}  // namespace gcm