Hook up ProximityAuthSystem in EasyUnlockService.

components/proximity_auth/remote_device_life_cycle_impl.h

Index: components/proximity_auth/remote_device_life_cycle_impl.h
diff --git a/components/proximity_auth/remote_device_life_cycle_impl.h b/components/proximity_auth/remote_device_life_cycle_impl.h
index de062f133afec0f96ee190b885ab0c8f103c9aef..aeb2ff32c6fcc83450df42ca97e24697713675a3 100644
--- a/components/proximity_auth/remote_device_life_cycle_impl.h
+++ b/components/proximity_auth/remote_device_life_cycle_impl.h
@@ -83,28 +83,28 @@ class RemoteDeviceLifeCycleImpl : public RemoteDeviceLifeCycle,
   // Observers added to the life cycle.
   base::ObserverList<Observer> observers_;

[sacomoto, 2015/09/29 20:58:33]

Please add a comment saying the observers are |NOTIFY_EXISTING_ONLY|, as this is
not the default.

[Tim Song, 2015/09/30 00:05:04]

Done.

 
-  // Rate limits Bluetooth connections to the same device. Used to in the
-  // created ConnectionFinder.
-  scoped_ptr<BluetoothThrottler> bluetooth_throttler_;
-
-  // Used in the FINDING_CONNECTION state to establish a connection to the
-  // remote device.
-  scoped_ptr<ConnectionFinder> connection_finder_;
+  // The messenger for sending and receiving messages in the
+  // SECURE_CHANNEL_ESTABLISHED state.
+  scoped_ptr<Messenger> messenger_;
 
-  // The connection that is established by |connection_finder_|.
-  scoped_ptr<Connection> connection_;
+  // Context for encrypting and decrypting messages. Created after
+  // authentication succeeds. Ownership is eventually passed to |messenger_|.
+  scoped_ptr<SecureContext> secure_context_;
 
   // Authenticates the remote device after it is connected. Used in the
   // AUTHENTICATING state.
   scoped_ptr<Authenticator> authenticator_;
 
-  // Context for encrypting and decrypting messages. Created after
-  // authentication succeeds. Ownership is eventually passed to |messenger_|.
-  scoped_ptr<SecureContext> secure_context_;
+  // The connection that is established by |connection_finder_|.
+  scoped_ptr<Connection> connection_;
 
-  // The messenger for sending and receiving messages in the
-  // SECURE_CHANNEL_ESTABLISHED state.
-  scoped_ptr<Messenger> messenger_;
+  // Used in the FINDING_CONNECTION state to establish a connection to the
+  // remote device.
+  scoped_ptr<ConnectionFinder> connection_finder_;
+
+  // Rate limits Bluetooth connections to the same device. Used to in the
+  // created ConnectionFinder.
+  scoped_ptr<BluetoothThrottler> bluetooth_throttler_;
 
   // After authentication fails, this timer waits for a period of time before
   // retrying the connection.