Propagate supported scanout formats from driver to SurfaceFactoryOzone.

ui/ozone/platform/drm/gpu/drm_gpu_display_manager.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_gpu_display_manager.h"
 
 #include <stddef.h>
 
 #include "ui/display/types/gamma_ramp_rgb_entry.h"
 #include "ui/ozone/common/display_util.h"
@@ skipping 81 matching lines @@
       params_list.push_back(
           displays_.back()->Update(display_info, device_index));
     }
     device_index++;
   }
 
   NotifyScreenManager(displays_, old_displays);
   return params_list;
 }
 
+void DrmGpuDisplayManager::GetScanoutFormats(
+    gfx::AcceleratedWidget widget,
+    std::vector<gfx::BufferFormat>* scanout_formats) {
+  const std::vector<uint32_t>& fourcc_formats =
+      drm_device_manager_->GetDrmDevice(widget)
+          ->plane_manager()
+          ->GetSupportedFormats();
+  for (auto& fourcc : fourcc_formats)
+    scanout_formats->push_back(GetBufferFormatFromFourCCFormat(fourcc));
+}
+
 bool DrmGpuDisplayManager::TakeDisplayControl() {
   const DrmDeviceVector& devices = drm_device_manager_->GetDrmDevices();
   bool status = true;
   for (const auto& drm : devices)
     status &= drm->SetMaster();
 
   // Roll-back any successful operation.
   if (!status) {
     LOG(ERROR) << "Failed to take control of the display";
     RelinquishDisplayControl();
@@ skipping 111 matching lines @@
                            DisplayComparator(new_display.get()));
 
     if (it == old_displays.end()) {
       screen_manager_->AddDisplayController(
           new_display->drm(), new_display->crtc(), new_display->connector());
     }
   }
 }
 
 }  // namespace ui