Refactor GeofencingManager to have one instance per StoragePartition.

content/browser/geofencing/geofencing_provider.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_BROWSER_GEOFENCING_GEOFENCING_PROVIDER_H_
 #define CONTENT_BROWSER_GEOFENCING_GEOFENCING_PROVIDER_H_
 
+#include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "content/common/geofencing_status.h"
 
 namespace blink {
 struct WebCircularGeofencingRegion;
 };
 
 namespace content {
 
 class GeofencingProvider {
  public:
-  // Callback that gets called on completion of registering a new region. The
-  // status indicates success or failure, and in case of success, an id to use
-  // to later unregister the region is passed as |registration_id|. If
-  // registration failed, providers should set |registration_id| to -1.
-  typedef base::Callback<void(GeofencingStatus, int registration_id)>
-      RegisterCallback;
+  typedef base::Callback<void(GeofencingStatus)> StatusCallback;
 
   virtual ~GeofencingProvider() {}
 
-  // Called by |GeofencingManager| to register a new fence. GeofencingManager is
+  // Called by |GeofencingService| to register a new fence. GeofencingService is
   // responsible for handling things like duplicate regions, so platform
   // specific implementations shouldn't have to worry about things like that.
-  // Also GeofencingManager should be making sure the total number of geofences
+  // Also GeofencingService should be making sure the total number of geofences
   // that is registered with the platform specific provider does not exceed the
   // number of regions supported by the platform, although that isn't
   // implemented yet.
-  virtual void RegisterRegion(const blink::WebCircularGeofencingRegion& region,
-                              const RegisterCallback& callback) = 0;
+  // Implementations of RegisterRegion must asynchronously call the |callback|
+  // to indicate success or failure.
+  virtual void RegisterRegion(int64 geofencing_registration_id,
+                              const blink::WebCircularGeofencingRegion& region,
+                              const StatusCallback& callback) = 0;
 
-  // Called by |GeofencingManager| to unregister an existing registration. Will
+  // Called by |GeofencingService| to unregister an existing registration. Will
   // only be called once for each registration.
-  virtual void UnregisterRegion(int registration_id) = 0;
+  virtual void UnregisterRegion(int64 geofencing_registration_id) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GEOFENCING_GEOFENCING_PROVIDER_H_