- Move DisplayManager and DisplayChangeObserverX11 from aura

  to ash.DisplayManager/DisplayChangeObserverX11 are in aura for
  historical reason, but they no longer have to be in aura.
  * Remove SingleDisplayManager as it's no longer necessary.
  * Rename MultipleDisplayManager and consolidate into DisplayManager.
  * Remove DisplayManager from desktop environment. Screen
    information is managed by platform in desktop environment, and
    should be provided via gfx::Screen implementation.

- Move DisplayObserver to ui/gfx. This should be consolicated
  with other similar features such as WorkAreaWatcherObserver/
  DisplaySettingsProvider. It's tracked in crbug.com/122863.

- Misc cleanups
  * Test should use test_support_ash instead of including
    individual files.
  * Use TestScreen where appropriate.

BUG=159710, 122863
TEST=none

Review URL: https://chromiumcodereview.appspot.com/11363124

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@167639 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 11 insertions, 1 deletions

diff --git a/ash/shell.h b/ash/shell.h
index 72073dc..38fd7e7 100644
--- a/ash/shell.h
+++ b/ash/shell.h
@@ -87,6 +87,8 @@ class AcceleratorFilter;
 class ActivationController;
 class AppListController;
 class CaptureController;
+class DisplayChangeObserverX11;
+class DisplayManager;
 class DragDropController;
 class EventClientImpl;
 class EventRewriterEventFilter;
@@ -263,6 +265,9 @@ class ASH_EXPORT Shell : internal::SystemModalContainerEventFilterDelegate,
   }
 #endif  // !defined(OS_MACOSX)
 
+  internal::DisplayManager* display_manager() {
+    return display_manager_.get();
+  }
   views::corewm::CompoundEventFilter* env_filter() {
     return env_filter_.get();
   }
@@ -322,7 +327,7 @@ class ASH_EXPORT Shell : internal::SystemModalContainerEventFilterDelegate,
     return magnification_controller_.get();
   }
 
-  const ScreenAsh* screen() { return screen_; }
+  ScreenAsh* screen() { return screen_; }
 
   // Force the shelf to query for it's current visibility state.
   void UpdateShelfVisibility();
@@ -519,11 +524,16 @@ class ASH_EXPORT Shell : internal::SystemModalContainerEventFilterDelegate,
   // a heads-up display. This is enabled only if --ash-touch-hud flag is used.
   scoped_ptr<internal::TouchObserverHUD> touch_observer_hud_;
 
+  scoped_ptr<internal::DisplayManager> display_manager_;
+
 #if defined(OS_CHROMEOS)
   // Controls video output device state.
   scoped_ptr<chromeos::OutputConfigurator> output_configurator_;
   scoped_ptr<internal::OutputConfiguratorAnimation>
       output_configurator_animation_;
+
+  // Receives output change events and udpates the display manager.
+  scoped_ptr<internal::DisplayChangeObserverX11> display_change_observer_;
 #endif  // defined(OS_CHROMEOS)
 
   CursorManager cursor_manager_;