Hook up ProximityAuthSystem in EasyUnlockService.

components/proximity_auth/messenger_impl.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 COMPONENTS_PROXIMITY_AUTH_MESSENGER_IMPL_H
 #define COMPONENTS_PROXIMITY_AUTH_MESSENGER_IMPL_H
 
 #include <deque>
 
 #include "base/macros.h"
@@ skipping 36 matching lines @@
 
  protected:
   SecureContext* secure_context() { return secure_context_.get(); }
 
  private:
   // Internal data structure to represent a pending message that either hasn't
   // been sent yet or is waiting for a response from the remote device.
   struct PendingMessage {
     PendingMessage();
     PendingMessage(const base::DictionaryValue& message);
+    PendingMessage(const std::string& message);
     ~PendingMessage();
 
     // The message, serialized as JSON.
     const std::string json_message;
 
     // The message type. This is possible to parse from the |json_message|; it's
     // stored redundantly for convenience.
     const std::string type;
   };
 
@@ skipping 11 matching lines @@
   void HandleRemoteStatusUpdateMessage(const base::DictionaryValue& message);
 
   // Handles an incoming "decrypt_response" message, parsing and notifying
   // observers of the decrypted content.
   void HandleDecryptResponseMessage(const base::DictionaryValue& message);
 
   // Handles an incoming "unlock_response" message, notifying observers of the
   // response.
   void HandleUnlockResponseMessage(const base::DictionaryValue& message);
 
+  // For iOS, we need to poll the phone every few seconds to keep the app alive
+  // in the background. This function starts the poll loop.
+  void PollScreenStateForIOS();
+
   // ConnectionObserver:
   void OnConnectionStatusChanged(Connection* connection,
                                  Connection::Status old_status,
                                  Connection::Status new_status) override;
   void OnMessageReceived(const Connection& connection,
                          const WireMessage& wire_message) override;
   void OnSendCompleted(const Connection& connection,
                        const WireMessage& wire_message,
                        bool success) override;
 
@@ skipping 15 matching lines @@
   scoped_ptr<PendingMessage> pending_message_;
 
   base::WeakPtrFactory<MessengerImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MessengerImpl);
 };
 
 }  // namespace proximity_auth
 
 #endif  // COMPONENTS_PROXIMITY_AUTH_MESSENGER_IMPL_H