Fix DisplayConfigurationController::SetMirrorMode

ash/display/display_configuration_controller.cc

 // Copyright 2016 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.
 
 #include "ash/display/display_configuration_controller.h"
 
 #include "ash/display/display_animator.h"
 #include "ash/display/display_layout.h"
 #include "ash/display/display_manager.h"
 #include "ash/rotator/screen_rotation_animator.h"
@@ skipping 64 matching lines @@
     display_animator_->StartFadeOutAnimation(
         base::Bind(&DisplayConfigurationController::SetDisplayLayoutImpl,
                    weak_ptr_factory_.GetWeakPtr(), display_id, layout));
   } else {
     SetDisplayLayoutImpl(display_id, layout);
   }
 }
 
 void DisplayConfigurationController::SetMirrorMode(bool mirror,
                                                    bool user_action) {
-  if (display_manager_->GetNumDisplays() <= 1 ||
+  if (display_manager_->num_connected_displays() <= 1 ||
       display_manager_->IsInMirrorMode() == mirror || IsLimited()) {
     return;
   }
   if (user_action && display_animator_) {
     display_animator_->StartFadeOutAnimation(
         base::Bind(&DisplayConfigurationController::SetMirrorModeImpl,
                    weak_ptr_factory_.GetWeakPtr(), mirror));
   } else {
     SetMirrorModeImpl(mirror);
   }
@@ skipping 65 matching lines @@
 void DisplayConfigurationController::SetPrimaryDisplayIdImpl(
     int64_t display_id) {
   window_tree_host_manager_->SetPrimaryDisplayId(display_id);
   if (limiter_)
     limiter_->SetThrottleTimeout(kSetPrimaryDisplayThrottleTimeoutMs);
   if (display_animator_)
     display_animator_->StartFadeInAnimation();
 }
 
 }  // namespace ash