Convert additional ozone/drm callbacks to OnceCallback

ui/ozone/platform/drm/gpu/page_flip_request.cc

Index: ui/ozone/platform/drm/gpu/page_flip_request.cc
diff --git a/ui/ozone/platform/drm/gpu/page_flip_request.cc b/ui/ozone/platform/drm/gpu/page_flip_request.cc
index 5b69d75f00c6e0c3caba20e3c36a908352e1cfab..d29f52b826bd85af6347dbb9cb144f3c573c9bf8 100644
--- a/ui/ozone/platform/drm/gpu/page_flip_request.cc
+++ b/ui/ozone/platform/drm/gpu/page_flip_request.cc
@@ -7,9 +7,8 @@
 namespace ui {
 
 PageFlipRequest::PageFlipRequest(int crtc_count,
-                                 const SwapCompletionCallback& callback)
-    : callback_(callback), crtc_count_(crtc_count) {
-}
+                                 SwapCompletionOnceCallback callback)
+    : callback_(std::move(callback)), crtc_count_(crtc_count) {}
 
 PageFlipRequest::~PageFlipRequest() {
 }
@@ -21,8 +20,7 @@ void PageFlipRequest::Signal(gfx::SwapResult result) {
     result_ = result;
 
   if (!--crtc_count_) {
-    callback_.Run(result_);
-    callback_.Reset();
+    std::move(callback_).Run(result_);
   }
 }