chromeos: Remove old LockScreen signal.

chromeos/dbus/session_manager_client.h

 // Copyright (c) 2012 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 CHROMEOS_DBUS_SESSION_MANAGER_CLIENT_H_
 #define CHROMEOS_DBUS_SESSION_MANAGER_CLIENT_H_
 
 #include <map>
 #include <string>
 
 #include "base/callback.h"
 #include "base/observer_list.h"
 #include "chromeos/chromeos_export.h"
 #include "chromeos/dbus/dbus_client.h"
 #include "chromeos/dbus/dbus_client_implementation_type.h"
 
 namespace chromeos {
 
 // SessionManagerClient is used to communicate with the session manager.
 class CHROMEOS_EXPORT SessionManagerClient : public DBusClient {
  public:
   // Interface for observing changes from the session manager.
   class Observer {
    public:
+    virtual ~Observer() {}
+
     // Called when the owner key is set.
     virtual void OwnerKeySet(bool success) {}
 
     // Called when the property change is complete.
     virtual void PropertyChangeComplete(bool success) {}
 
-    // Called when the session manager requests that the lock screen be
-    // displayed.  NotifyLockScreenShown() is called after the lock screen
-    // is shown (the canonical "is the screen locked?" state lives in the
-    // session manager).
-    // TODO(derat): Delete this once the session manager is calling the
-    // "LockScreen" method instead.
-    virtual void LockScreen() {}
-
     // Called when the session manager announces that the screen has been locked
     // successfully (i.e. after NotifyLockScreenShown() has been called).
     virtual void ScreenIsLocked() {}
 
     // Called when the session manager announces that the screen has been
     // unlocked successfully (i.e. after NotifyLockScreenDismissed() has
     // been called).
     virtual void ScreenIsUnlocked() {}
 
     // Called after EmitLoginPromptVisible is called.
     virtual void EmitLoginPromptVisibleCalled() {}
   };
 
+  // Interface for performing actions on behalf of the stub implementation.
+  class StubDelegate {
+   public:
+    virtual ~StubDelegate() {}
+
+    // Locks the screen. Invoked by the stub when RequestLockScreen() is called.
+    // In the real implementation of SessionManagerClient::RequestLockScreen(),
+    // a lock request is forwarded to the session manager; in the stub, this is
+    // short-circuited and the screen is locked immediately.
+    virtual void LockScreenForStub() = 0;
+  };
+
+  // Sets the delegate used by the stub implementation. Ownership of |delegate|
+  // remains with the caller.
+  virtual void SetStubDelegate(StubDelegate* delegate) = 0;
+
   // Adds and removes the observer.
   virtual void AddObserver(Observer* observer) = 0;
   virtual void RemoveObserver(Observer* observer) = 0;
   virtual bool HasObserver(Observer* observer) = 0;
 
   // Kicks off an attempt to emit the "login-prompt-visible" upstart signal.
   virtual void EmitLoginPromptVisible() = 0;
 
   // Restarts a job referenced by |pid| with the provided command line.
   virtual void RestartJob(int pid, const std::string& command_line) = 0;
@@ skipping 107 matching lines @@
   // Create() should be used instead.
   SessionManagerClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SessionManagerClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_SESSION_MANAGER_CLIENT_H_