Revert of Adding status to swap complete

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

 // 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.
 
 #include "ui/ozone/platform/drm/gpu/drm_window.h"
 
 #include "base/trace_event/trace_event.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkDevice.h"
 #include "third_party/skia/include/core/SkSurface.h"
@@ skipping 106 matching lines @@
   cursor_location_ = location;
 
   if (controller_)
     controller_->MoveCursor(location);
 }
 
 void DrmWindow::QueueOverlayPlane(const OverlayPlane& plane) {
   pending_planes_.push_back(plane);
 }
 
-bool DrmWindow::SchedulePageFlip(bool is_sync,
-                                 const SwapCompletionCallback& callback) {
+bool DrmWindow::SchedulePageFlip(bool is_sync, const base::Closure& callback) {
   last_submitted_planes_.clear();
   last_submitted_planes_.swap(pending_planes_);
   last_swap_sync_ = is_sync;
 
   if (controller_) {
     return controller_->SchedulePageFlip(last_submitted_planes_, is_sync, false,
                                          callback);
   }
 
-  callback.Run(gfx::SwapResult::SWAP_ACK);
+  callback.Run();
   return true;
 }
 
 const OverlayPlane* DrmWindow::GetLastModesetBuffer() {
   return OverlayPlane::GetPrimaryPlane(last_submitted_planes_);
 }
 
 void DrmWindow::ResetCursor(bool bitmap_only) {
   if (!controller_)
     return;
@@ skipping 56 matching lines @@
       if (!cursor_buffers_[i]->Initialize(
               info, false /* should_register_framebuffer */)) {
         LOG(FATAL) << "Failed to initialize cursor buffer";
         return;
       }
     }
   }
 }
 
 }  // namespace ui