Dispatch push event to worker from PushServiceImpl#OnMessage.

content/public/browser/push_messaging_application_id.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 "content/public/browser/push_messaging_application_id.h"
+
+#include "base/logging.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/string_split.h"
+
+namespace {
+const char kSeparator = '#';  // Ok as only the origin of the url is used.
+const char kPrefix[] = "push";
+}  // namespace
+
+namespace content {
+
+// static
+PushMessagingApplicationId PushMessagingApplicationId::Parse(
+    const std::string& id) {
+  std::vector<std::string> parts;
+  base::SplitString(id, kSeparator, &parts);
+
+  if (parts.size() != 3 || parts[0] != kPrefix)
+    return PushMessagingApplicationId();
+
+  GURL origin = GURL(parts[1]);
+  if (!origin.is_valid() || origin.GetOrigin() != origin)
+    return PushMessagingApplicationId();
+
+  int64 worker_registration_id;
+  if (!base::StringToInt64(parts[2], &worker_registration_id))
+    return PushMessagingApplicationId();
+
+  return PushMessagingApplicationId(origin, worker_registration_id);
+}
+
+// static
+bool PushMessagingApplicationId::IsValid(const std::string& id) {
+  return PushMessagingApplicationId::Parse(id).is_valid();
+}
+
+std::string PushMessagingApplicationId::ToString() {
+  return (std::string(kPrefix) + kSeparator + origin.spec() + kSeparator + base::Int64ToString(worker_registration_id));
+}
+
+}  // namespace content