Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/login/screens/error_screen.h

Index: chrome/browser/chromeos/login/screens/error_screen.h
diff --git a/chrome/browser/chromeos/login/screens/error_screen.h b/chrome/browser/chromeos/login/screens/error_screen.h
index a6591719721c063b55ee059596b7451b6034fb8b..7d1bfc609c8e313ba3c2d304d15aab3059e281d6 100644
--- a/chrome/browser/chromeos/login/screens/error_screen.h
+++ b/chrome/browser/chromeos/login/screens/error_screen.h
@@ -5,9 +5,10 @@
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_ERROR_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_ERROR_SCREEN_H_
 
+#include <memory>
+
 #include "base/compiler_specific.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/chromeos/login/screens/network_error.h"
 #include "chrome/browser/chromeos/login/screens/network_error_model.h"
@@ -25,7 +26,7 @@ class NetworkErrorView;
 // Controller for the error screen.
 class ErrorScreen : public NetworkErrorModel, public LoginPerformer::Delegate {
  public:
-  typedef scoped_ptr<base::CallbackList<void()>::Subscription>
+  typedef std::unique_ptr<base::CallbackList<void()>::Subscription>
       ConnectRequestCallbackSubscription;
 
   ErrorScreen(BaseScreenDelegate* base_screen_delegate, NetworkErrorView* view);
@@ -99,10 +100,10 @@ class ErrorScreen : public NetworkErrorModel, public LoginPerformer::Delegate {
 
   NetworkErrorView* view_ = nullptr;
 
-  scoped_ptr<LoginPerformer> guest_login_performer_;
+  std::unique_ptr<LoginPerformer> guest_login_performer_;
 
   // Proxy which manages showing of the window for captive portal entering.
-  scoped_ptr<CaptivePortalWindowProxy> captive_portal_window_proxy_;
+  std::unique_ptr<CaptivePortalWindowProxy> captive_portal_window_proxy_;
 
   // Network state informer used to keep error screen up.
   scoped_refptr<NetworkStateInformer> network_state_informer_;
@@ -113,7 +114,7 @@ class ErrorScreen : public NetworkErrorModel, public LoginPerformer::Delegate {
   OobeScreen parent_screen_ = OobeScreen::SCREEN_UNKNOWN;
 
   // Optional callback that is called when NetworkError screen is hidden.
-  scoped_ptr<base::Closure> on_hide_callback_;
+  std::unique_ptr<base::Closure> on_hide_callback_;
 
   // Callbacks to be invoked when a connection attempt is requested.
   base::CallbackList<void()> connect_request_callbacks_;