Preliminary atomic patch

ui/ozone/platform/drm/gpu/hardware_display_plane_manager_atomic.h

Index: ui/ozone/platform/drm/gpu/hardware_display_plane_manager_atomic.h
diff --git a/ui/ozone/platform/drm/gpu/hardware_display_plane_manager_legacy.h b/ui/ozone/platform/drm/gpu/hardware_display_plane_manager_atomic.h
similarity index 60%
copy from ui/ozone/platform/drm/gpu/hardware_display_plane_manager_legacy.h
copy to ui/ozone/platform/drm/gpu/hardware_display_plane_manager_atomic.h
index 8bf80cd3f19ad9b489fa47b0db0b7d6575dce54a..f59ff5297cc0be6b5aa211313e549164ebe912d4 100644
--- a/ui/ozone/platform/drm/gpu/hardware_display_plane_manager_legacy.h
+++ b/ui/ozone/platform/drm/gpu/hardware_display_plane_manager_atomic.h
@@ -1,4 +1,4 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
+// Copyright 2015 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.
 
@@ -10,13 +10,17 @@
 
 namespace ui {
 
-class OZONE_EXPORT HardwareDisplayPlaneManagerLegacy
+class OZONE_EXPORT HardwareDisplayPlaneManagerAtomic
     : public HardwareDisplayPlaneManager {
  public:
-  HardwareDisplayPlaneManagerLegacy();
-  ~HardwareDisplayPlaneManagerLegacy() override;
+  HardwareDisplayPlaneManagerAtomic();
+  ~HardwareDisplayPlaneManagerAtomic() override;
 
   // HardwareDisplayPlaneManager:
+  bool AssignOverlayPlanes(HardwareDisplayPlaneList* plane_list,
+                           const OverlayPlaneList& overlay_list,
+                           uint32_t crtc_id,
+                           CrtcController* crtc) override;
   bool Commit(HardwareDisplayPlaneList* plane_list, bool is_sync) override;
 
  private:
@@ -27,7 +31,11 @@ class OZONE_EXPORT HardwareDisplayPlaneManagerLegacy
                     const gfx::Rect& src_rect,
                     CrtcController* crtc) override;
 
-  DISALLOW_COPY_AND_ASSIGN(HardwareDisplayPlaneManagerLegacy);
+  scoped_ptr<HardwareDisplayPlane> CreatePlane(
+      uint32_t plane_id,
+      uint32_t possible_crtcs) override;
+
+  DISALLOW_COPY_AND_ASSIGN(HardwareDisplayPlaneManagerAtomic);
 };
 
 }  // namespace ui