Overscan calibration UI.

ash/display/multi_display_manager.cc

 // 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.
 
 #include "ash/display/multi_display_manager.h"
 
 #include <string>
 #include <vector>
 
 #include "ash/display/display_controller.h"
@@ skipping 144 matching lines @@
         bounds.Inset(old_insets.Scale(-iter->device_scale_factor()));
         iter->SetScaleAndBounds(iter->device_scale_factor(), bounds);
         break;
       }
     }
   }
   overscan_mapping_[display_id] = insets_in_dip;
   OnNativeDisplaysChanged(displays);
 }
 
+gfx::Insets MultiDisplayManager::GetOverscanInsets(int64 display_id) {
+  std::map<int64, gfx::Insets>::const_iterator it =
+      overscan_mapping_.find(display_id);
+  return (it != overscan_mapping_.end()) ? it->second : gfx::Insets();
+}
+
 void MultiDisplayManager::OnNativeDisplaysChanged(
     const std::vector<gfx::Display>& updated_displays) {
   if (updated_displays.empty()) {
     // Don't update the displays when all displays are disconnected.
     // This happens when:
     // - the device is idle and powerd requested to turn off all displays.
     // - the device is suspended. (kernel turns off all displays)
     // - the internal display's brightness is set to 0 and no external
     //   display is connected.
     // - the internal display's brightness is 0 and external display is
@@ skipping 308 matching lines @@
   DisplayList::iterator iter_to_update = to_update->begin();
   DisplayList::const_iterator iter = displays_.begin();
   for (; iter != displays_.end() && iter_to_update != to_update->end();
        ++iter, ++iter_to_update) {
     (*iter_to_update).set_id((*iter).id());
   }
 }
 
 }  // namespace internal
 }  // namespace ash