[Ozone-GBM] Add basic support for display configuration over IPC

ui/ozone/platform/dri/chromeos/native_display_delegate_dri.h

 // Copyright 2014 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.
 
 #ifndef UI_OZONE_PLATFORM_DRI_CHROMEOS_NATIVE_DISPLAY_DELEGATE_DRI_H_
 #define UI_OZONE_PLATFORM_DRI_CHROMEOS_NATIVE_DISPLAY_DELEGATE_DRI_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/observer_list.h"
 #include "ui/display/types/chromeos/native_display_delegate.h"
 #include "ui/events/ozone/device/device_event_observer.h"
 
 namespace ui {
 
 class DeviceManager;
 class DisplaySnapshotDri;
 class DriConsoleBuffer;
 class DriWrapper;
 class ScreenManager;
 
 class NativeDisplayDelegateDri
     : public NativeDisplayDelegate, DeviceEventObserver {
  public:
   NativeDisplayDelegateDri(DriWrapper* dri,
                            ScreenManager* screen_manager,
                            DeviceManager* device_manager);
   virtual ~NativeDisplayDelegateDri();
 
+  DisplaySnapshot* FindDisplaySnapshot(int64_t id);
+
   // NativeDisplayDelegate overrides:
   virtual void Initialize() OVERRIDE;
   virtual void GrabServer() OVERRIDE;
   virtual void UngrabServer() OVERRIDE;
   virtual void SyncWithServer() OVERRIDE;
   virtual void SetBackgroundColor(uint32_t color_argb) OVERRIDE;
   virtual void ForceDPMSOn() OVERRIDE;
   virtual std::vector<DisplaySnapshot*> GetDisplays() OVERRIDE;
   virtual void AddMode(const DisplaySnapshot& output,
                        const DisplayMode* mode) OVERRIDE;
@@ skipping 31 matching lines @@
   ScopedVector<const DisplayMode> cached_modes_;
   ScopedVector<DisplaySnapshotDri> cached_displays_;
   ObserverList<NativeDisplayObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeDisplayDelegateDri);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRI_CHROMEOS_NATIVE_DISPLAY_DELEGATE_DRI_H_