Hook up CryptAuthGCMManager to the enrollment and device sync managers.

components/proximity_auth/webui/proximity_auth_ui_delegate.h

 // 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.
 
 #ifndef COMPONENTS_PROXIMITY_AUTH_WEBUI_PROXIMITY_AUTH_UI_DELEGATE_H_
 #define COMPONENTS_PROXIMITY_AUTH_WEBUI_PROXIMITY_AUTH_UI_DELEGATE_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "components/proximity_auth/cryptauth/proto/cryptauth_api.pb.h"
 
 class PrefService;
 
+namespace gcm {
+class GCMDriver;
+}
+
 namespace proximity_auth {
 
 class CryptAuthClientFactory;
 class SecureMessageDelegate;
 
 // A delegate used by the chrome://proximity-auth WebUI, used to get
 // implmentations with dependencies on chrome.
 class ProximityAuthUIDelegate {
  public:
   virtual ~ProximityAuthUIDelegate() {}
 
   // Returns the PrefService used by the profile.
   virtual PrefService* GetPrefService() = 0;
 
   // Returns the SecureMessageDelegate used by the system.
   virtual scoped_ptr<SecureMessageDelegate> CreateSecureMessageDelegate() = 0;
 
   // Constructs the CryptAuthClientFactory that can be used for API requests.
   virtual scoped_ptr<CryptAuthClientFactory> CreateCryptAuthClientFactory() = 0;
 
   // Constructs the DeviceClassifier message that is sent to CryptAuth for all
   // API requests.
   virtual cryptauth::DeviceClassifier GetDeviceClassifier() = 0;
+
+  // Returns the GCMDriver instance used by Chrome.
+  virtual gcm::GCMDriver* GetGCMDriver() = 0;
 };
 
 }  // namespace proximity_auth
 
 #endif  // COMPONENTS_PROXIMITY_AUTH_WEBUI_PROXIMITY_AUTH_UI_DELEGATE_H_