Revert "chromeos: move screen lock handling to power manager client"

chrome/browser/chromeos/dbus/power_manager_client.h

Index: chrome/browser/chromeos/dbus/power_manager_client.h
diff --git a/chrome/browser/chromeos/dbus/power_manager_client.h b/chrome/browser/chromeos/dbus/power_manager_client.h
index 28e3993d3fc83038ce8b47cebff360ef2f8c0c6e..43f58a40ec92ae3e693e19462e6e6d05244b9186 100644
--- a/chrome/browser/chromeos/dbus/power_manager_client.h
+++ b/chrome/browser/chromeos/dbus/power_manager_client.h
@@ -54,15 +54,6 @@ class PowerManagerClient {
 
     // Called when the system resumes from suspend.
     virtual void SystemResumed() {}
-
-    // Called when the screen is locked.
-    virtual void LockScreen() {}
-
-    // Called when the screen is unlocked.
-    virtual void UnlockScreen() {}
-
-    // Called when the screen fails to unlock.
-    virtual void UnlockScreenFailed() {}
   };
 
   // Adds and removes the observer.
@@ -90,18 +81,6 @@ class PowerManagerClient {
   // encounters some error, it passes -1 to |callback|.
   virtual void CalculateIdleTime(const CalculateIdleTimeCallback& callback) = 0;
 
-  // Notifies PowerManager that a user requested to lock the screen.
-  virtual void NotifyScreenLockRequested() = 0;
-
-  // Notifies PowerManager that screen lock has been completed.
-  virtual void NotifyScreenLockCompleted() = 0;
-
-  // Notifies PowerManager that a user unlocked the screen.
-  virtual void NotifyScreenUnlockRequested() = 0;
-
-  // Notifies PowerManager that screen is unlocked.
-  virtual void NotifyScreenUnlockCompleted() = 0;
-
   // Creates the instance.
   static PowerManagerClient* Create(dbus::Bus* bus);