Preliminary atomic patch

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

Index: ui/ozone/platform/drm/gpu/drm_device.h
diff --git a/ui/ozone/platform/drm/gpu/drm_device.h b/ui/ozone/platform/drm/gpu/drm_device.h
index 6ff19825e9492cfcc32d8e8e5cbcd15a67510d1b..546311c5e59589a61b5edaf3fbc168a52782e878 100644
--- a/ui/ozone/platform/drm/gpu/drm_device.h
+++ b/ui/ozone/platform/drm/gpu/drm_device.h
@@ -154,6 +154,10 @@ class OZONE_EXPORT DrmDevice : public base::RefCountedThreadSafe<DrmDevice> {
                                  uint32_t stride,
                                  void* pixels);
 
+  virtual bool CommitProperties(drmModePropertySet* properties,
+                                uint32_t flags,
+                                const PageFlipCallback& callback);
+
   // Drm master related
   virtual bool SetMaster();
   virtual bool DropMaster();