chromeos: Move EnableScreenLock to PowerManagerClient from PowerLibrary

chrome/browser/chromeos/dbus/power_manager_client.h

 // Copyright (c) 2011 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 CHROME_BROWSER_CHROMEOS_DBUS_POWER_MANAGER_CLIENT_H_
 #define CHROME_BROWSER_CHROMEOS_DBUS_POWER_MANAGER_CLIENT_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 60 matching lines @@
   virtual void RequestRestart() = 0;
 
   // Requests shutdown of the system.
   virtual void RequestShutdown() = 0;
 
   // Calculates idle time asynchronously, after the idle time request has
   // replied.  It passes the idle time in seconds to |callback|.  If it
   // encounters some error, it passes -1 to |callback|.
   virtual void CalculateIdleTime(const CalculateIdleTimeCallback& callback) = 0;
 
+  // Enable/disable screen lock for current session.
+  virtual void EnableScreenLock(bool enable) = 0;
+
   // Creates the instance.
   static PowerManagerClient* Create(dbus::Bus* bus);
 
   virtual ~PowerManagerClient();
 
  protected:
   // Create() should be used instead.
   PowerManagerClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PowerManagerClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_DBUS_POWER_MANAGER_CLIENT_H_