Pass through geofencing API calls to the browser process.

content/child/geofencing/geofencing_dispatcher.h

+// 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.
+
+#ifndef CONTENT_CHILD_GEOFENCING_GEOFENCING_DISPATCHER_H_
+#define CONTENT_CHILD_GEOFENCING_GEOFENCING_DISPATCHER_H_
+
+#include "base/id_map.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "content/child/worker_task_runner.h"
+#include "content/common/geofencing_status.h"
+#include "third_party/WebKit/public/platform/WebGeofencingProvider.h"
+
+namespace base {
+class MessageLoop;
+class TaskRunner;
+}
+
+namespace IPC {
+class Message;
+}
+
+namespace content {
+class ThreadSafeSender;
+
+class GeofencingDispatcher : public WorkerTaskRunner::Observer {
+ public:
+  explicit GeofencingDispatcher(ThreadSafeSender* sender);
+  virtual ~GeofencingDispatcher();
+
+  bool Send(IPC::Message* msg);
+  void OnMessageReceived(const IPC::Message& msg);
+
+  // Corresponding to WebGeofencingProvider methods.
+  void RegisterRegion(const blink::WebString& region_id,
+                      const blink::WebCircularGeofencingRegion& region,
+                      blink::WebGeofencingCallbacks* callbacks);
+  void UnregisterRegion(const blink::WebString& region_id,
+                        blink::WebGeofencingCallbacks* callbacks);
+  void GetRegisteredRegions(blink::WebGeofencingRegionsCallbacks* callbacks);
+
+  // |thread_safe_sender| needs to be passed in because if the call leads to
+  // construction it will be needed.
+  static GeofencingDispatcher* GetOrCreateThreadSpecificInstance(
+      ThreadSafeSender* thread_safe_sender);
+
+  // Unlike GetOrCreateThreadSpecificInstance() this doesn't create a new
+  // instance if thread-local instance doesn't exist.
+  static GeofencingDispatcher* GetThreadSpecificInstance();
+
+ private:
+  void OnRegisterRegionComplete(int thread_id,
+                                int request_id,
+                                GeofencingStatus status);
+  void OnUnregisterRegionComplete(int thread_id,
+                                  int request_id,
+                                  GeofencingStatus status);
+  void OnGetRegisteredRegionsComplete(
+      int thread_id,
+      int request_id,
+      GeofencingStatus status,
+      const std::map<std::string, blink::WebCircularGeofencingRegion>& regions);
+
+  // WorkerTaskRunner::Observer implementation.
+  virtual void OnWorkerRunLoopStopped() OVERRIDE;
+
+  scoped_refptr<ThreadSafeSender> thread_safe_sender_;
+  IDMap<blink::WebGeofencingCallbacks, IDMapOwnPointer>
+      region_registration_requests_;
+  IDMap<blink::WebGeofencingCallbacks, IDMapOwnPointer>
+      region_unregistration_requests_;
+  IDMap<blink::WebGeofencingRegionsCallbacks, IDMapOwnPointer>
+      get_registered_regions_requests_;
+
+  DISALLOW_COPY_AND_ASSIGN(GeofencingDispatcher);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_CHILD_GEOFENCING_GEOFENCING_DISPATCHER_H_