arc-bridge: Implement IPC message for app launcher

components/arc/common/arc_message_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 "components/arc/common/arc_message_traits.h"
+
+#include "ipc/param_traits_write_macros.h"
+#include "ipc/param_traits_read_macros.h"
+#include "ipc/param_traits_log_macros.h"
+
+namespace IPC {
+
+// static
+void ParamTraits<arc::AppInfo>::Write(Message* m, const param_type& p) {
+  WriteParam(m, p.name);
+  WriteParam(m, p.package);
+  WriteParam(m, p.activity);
+}
+
+// static
+bool ParamTraits<arc::AppInfo>::Read(const Message* m,
+                                     base::PickleIterator* iter,
+                                     param_type* r) {
+  if (!ReadParam(m, iter, &r->name) ||
+      !ReadParam(m, iter, &r->package) ||
+      !ReadParam(m, iter, &r->activity)) {
+    return false;
+  }
+
+  return true;
+}
+
+// static
+void ParamTraits<arc::AppInfo>::Log(const param_type& p, std::string* l) {
+  LogParam(p.name, l);
+  l->append(" (");
+  LogParam(p.package, l);
+  l->append("/");
+  LogParam(p.activity, l);
+  l->append(")");
+}
+
+}  // namespace IPC