Add plane manager to the atomic swap path.

ui/ozone/platform/dri/hardware_display_plane.h

Index: ui/ozone/platform/dri/hardware_display_plane.h
diff --git a/ui/ozone/platform/dri/hardware_display_plane.h b/ui/ozone/platform/dri/hardware_display_plane.h
index 1a37b486265f0733521807e4d08b54f3b99d479f..dd79f7680233dfb151b83b5437d2ec4b7e02101e 100644
--- a/ui/ozone/platform/dri/hardware_display_plane.h
+++ b/ui/ozone/platform/dri/hardware_display_plane.h
@@ -30,11 +30,15 @@ class HardwareDisplayPlane {
 
   bool Initialize();
 
+  bool CanUseForCrtc(uint32_t crtc_id);
   bool SetPlaneData(uint32_t crtc_id,
                     uint32_t framebuffer,
                     const gfx::Rect& crtc_rect,
                     const gfx::Rect& src_rect);
 
+  bool in_use() const { return in_use_; }
+  void set_in_use(bool in_use) { in_use_ = in_use; }
+
  private:
   struct Property {
     Property();
@@ -52,6 +56,7 @@ class HardwareDisplayPlane {
 
   ScopedDrmPlanePtr plane_;
   uint32_t plane_id_;
+  bool in_use_;
 
   Property crtc_prop_;
   Property fb_prop_;