Revert of Hook up ProximityAuthSystem in EasyUnlockService.

components/proximity_auth/proximity_auth_system.h

Index: components/proximity_auth/proximity_auth_system.h
diff --git a/components/proximity_auth/proximity_auth_system.h b/components/proximity_auth/proximity_auth_system.h
index a8911b3f3079943992f88dca04bf7bb895c3f812..644d65dfe129c10647037fcbc775d79efedce2ea 100644
--- a/components/proximity_auth/proximity_auth_system.h
+++ b/components/proximity_auth/proximity_auth_system.h
@@ -8,74 +8,23 @@
 #include <vector>
 
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
 #include "components/proximity_auth/remote_device.h"
-#include "components/proximity_auth/remote_device_life_cycle.h"
-#include "components/proximity_auth/screenlock_bridge.h"
 
 namespace proximity_auth {
 
-class ProximityAuthClient;
-class RemoteDeviceLifeCycle;
-class UnlockManager;
+// This is the main entry point to start Proximity Auth, the underlying system
+// for the Easy Unlock and Easy Sign-in features. Given a list of registered
+// remote devices (i.e. phones), this object will handle the connection,
+// authentication, and protocol for all the devices.
+class ProximityAuthSystem {
+ public:
+  ProximityAuthSystem(const std::vector<RemoteDevice>& remote_devices);
+  virtual ~ProximityAuthSystem();
 
-// This is the main entry point to start Proximity Auth, the underlying system
-// for the Smart Lock feature. Given a registered remote device (i.e. a phone),
-// this object will handle the connection, authentication, and protocol for the
-// device.
-class ProximityAuthSystem : public RemoteDeviceLifeCycle::Observer,
-                            public ScreenlockBridge::Observer {
- public:
-  ProximityAuthSystem(RemoteDevice remote_device,
-                      ProximityAuthClient* proximity_auth_client);
-  ~ProximityAuthSystem() override;
-
-  // Starts the system to begin connecting and authenticating the remote device.
-  void Start();
-
-  // Called when the user clicks the user pod and attempts to unlock/sign-in.
-  void OnAuthAttempted(const std::string& user_id);
-
-  // Called when the system suspends.
-  void OnSuspend();
-
-  // Called when the system wakes up from a suspended state.
-  void OnSuspendDone();
+  const std::vector<RemoteDevice>& GetRemoteDevices();
 
  private:
-  // RemoteDeviceLifeCycle::Observer:
-  void OnLifeCycleStateChanged(RemoteDeviceLifeCycle::State old_state,
-                               RemoteDeviceLifeCycle::State new_state) override;
-
-  // ScreenlockBridge::Observer:
-  void OnScreenDidLock(
-      ScreenlockBridge::LockHandler::ScreenType screen_type) override;
-  void OnScreenDidUnlock(
-      ScreenlockBridge::LockHandler::ScreenType screen_type) override;
-  void OnFocusedUserChanged(const std::string& user_id) override;
-
-  // Resumes |remote_device_life_cycle_| after device wakes up and waits a
-  // timeout.
-  void ResumeAfterWakeUpTimeout();
-
-  // The remote device to connect to.
-  RemoteDevice remote_device_;
-
-  // Delegate for Chrome dependent functionality.
-  ProximityAuthClient* proximity_auth_client_;
-
-  // Responsible for the life cycle of connecting and authenticating to
-  // |remote_device_|.
-  scoped_ptr<RemoteDeviceLifeCycle> remote_device_life_cycle_;
-
-  // Handles the interaction with the lock screen UI.
-  scoped_ptr<UnlockManager> unlock_manager_;
-
-  // True if the system is suspended.
-  bool suspended_;
-
-  base::WeakPtrFactory<ProximityAuthSystem> weak_ptr_factory_;
+  std::vector<RemoteDevice> remote_devices_;
 
   DISALLOW_COPY_AND_ASSIGN(ProximityAuthSystem);
 };