ozone: ClientPixmapManager passes VGEM fd from browser to renderer.

ui/ozone/platform/drm/host/drm_display_host_manager.h

 // 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.
 
 #ifndef UI_OZONE_PLATFORM_DRM_HOST_DRM_DISPLAY_HOST_MANAGER_H_
 #define UI_OZONE_PLATFORM_DRM_HOST_DRM_DISPLAY_HOST_MANAGER_H_
 
 #include <queue>
 #include <set>
 
+#include "base/file_descriptor_posix.h"
 #include "base/files/scoped_file.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
 #include "ui/display/types/native_display_delegate.h"
 #include "ui/events/ozone/device/device_event.h"
 #include "ui/events/ozone/device/device_event_observer.h"
 #include "ui/events/ozone/evdev/event_factory_evdev.h"
 #include "ui/ozone/public/gpu_platform_support_host.h"
 
 namespace ui {
@@ skipping 16 matching lines @@
 
   DrmDisplayHost* GetDisplay(int64_t display_id);
 
   void AddDelegate(DrmNativeDisplayDelegate* delegate);
   void RemoveDelegate(DrmNativeDisplayDelegate* delegate);
 
   void TakeDisplayControl(const DisplayControlCallback& callback);
   void RelinquishDisplayControl(const DisplayControlCallback& callback);
   void UpdateDisplays(const GetDisplaysCallback& callback);
 
+  base::FileDescriptor GetVgemFd();
+
   // DeviceEventObserver overrides:
   void OnDeviceEvent(const DeviceEvent& event) override;
 
   // GpuPlatformSupportHost:
   void OnChannelEstablished(
       int host_id,
       scoped_refptr<base::SingleThreadTaskRunner> send_runner,
       const base::Callback<void(IPC::Message*)>& send_callback) override;
   void OnChannelDestroyed(int host_id) override;
 
@@ skipping 80 matching lines @@
   base::ScopedFD vgem_card_device_file_;
 
   base::WeakPtrFactory<DrmDisplayHostManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DrmDisplayHostManager);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRM_HOST_DRM_DISPLAY_HOST_MANAGER_H_