Gather the ServiceWorker client information in the browser process.

content/common/service_worker/service_worker_traits.cc

+// 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.
+
+#include "content/common/service_worker/service_worker_traits.h"
+
+#include "base/strings/stringprintf.h"
+#include "content/common/service_worker/service_worker_client_info.h"
+#include "content/public/common/common_param_traits.h"
+
+using content::ServiceWorkerClientInfo;
+
+namespace IPC {
+
+void ParamTraits<ServiceWorkerClientInfo>::Write(
+    Message* m, const ServiceWorkerClientInfo& p) {
+  m->WriteBool(p.IsEmpty());
+  if (p.IsEmpty())
+    return;
+  m->WriteInt(p.client_id());
+  m->WriteInt(static_cast<int>(p.page_visibility_state()));
+  m->WriteBool(p.is_focused());
+  ParamTraits<GURL>::Write(m, p.url());
+  m->WriteInt(static_cast<int>(p.frame_type()));
+}
+
+bool ParamTraits<ServiceWorkerClientInfo>::Read(const Message* m,
+                                                PickleIterator* iter,
+                                                ServiceWorkerClientInfo* r) {
+  bool is_empty;
+  if (!iter->ReadBool(&is_empty))
+    return false;
+  if (is_empty) {
+    *r = ServiceWorkerClientInfo();
+    return true;
+  }
+
+  GURL url;
+  bool is_focused;
+  int client_id, page_visibility_state, frame_type;
+
+  if (!iter->ReadInt(&client_id) ||
+      !iter->ReadInt(&page_visibility_state) ||
+      !iter->ReadBool(&is_focused) ||
+      !ParamTraits<GURL>::Read(m, iter, &url) ||
+      !iter->ReadInt(&frame_type))
+    return false;
+
+  ServiceWorkerClientInfo client_info(
+      static_cast<blink::WebPageVisibilityState>(page_visibility_state),
+      is_focused,
+      url,
+      static_cast<content::RequestContextFrameType>(frame_type));
+  client_info.SetClientID(client_id);
+  *r = client_info;
+  return true;
+}
+
+void ParamTraits<ServiceWorkerClientInfo>::Log(const ServiceWorkerClientInfo& p,
+                                               std::string* l) {
+  l->append(base::StringPrintf("<ServiceWorkerClientInfo>"));
+}
+
+}