Pass through geofencing API calls to the browser process.

content/child/geofencing/geofencing_message_filter.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/child/geofencing/geofencing_message_filter.h"
+
+#include "base/message_loop/message_loop_proxy.h"
+#include "content/child/geofencing/geofencing_dispatcher.h"
+#include "content/child/thread_safe_sender.h"
+#include "content/child/worker_thread_task_runner.h"
+#include "ipc/ipc_message_macros.h"
+
+namespace content {
+
+GeofencingMessageFilter::GeofencingMessageFilter(ThreadSafeSender* sender)
+    : main_thread_loop_proxy_(base::MessageLoopProxy::current()),
+      thread_safe_sender_(sender) {
+}
+
+GeofencingMessageFilter::~GeofencingMessageFilter() {
+}
+
+base::TaskRunner* GeofencingMessageFilter::OverrideTaskRunnerForMessage(
+    const IPC::Message& msg) {
+  if (IPC_MESSAGE_CLASS(msg) != GeofencingMsgStart)
+    return NULL;
+  int ipc_thread_id = 0;
+  const bool success = PickleIterator(msg).ReadInt(&ipc_thread_id);
+  DCHECK(success);
+  if (!ipc_thread_id)
+    return main_thread_loop_proxy_.get();
+  return new WorkerThreadTaskRunner(ipc_thread_id);
+}
+
+bool GeofencingMessageFilter::OnMessageReceived(const IPC::Message& msg) {
+  if (IPC_MESSAGE_CLASS(msg) != GeofencingMsgStart)
+    return false;
+  GeofencingDispatcher::GetOrCreateThreadSpecificInstance(
+      thread_safe_sender_.get())->OnMessageReceived(msg);
+  return true;
+}
+
+}  // namespace content