ozone: dri: Fix undefined references in DRI platform GN build

ui/ozone/platform/dri/hardware_display_plane_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_DRI_HARDWARE_DISPLAY_PLANE_MANAGER_H_
 #define UI_OZONE_PLATFORM_DRI_HARDWARE_DISPLAY_PLANE_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 #include <xf86drmMode.h>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_vector.h"
+#include "ui/ozone/ozone_export.h"
 #include "ui/ozone/platform/dri/hardware_display_plane.h"
 #include "ui/ozone/platform/dri/overlay_plane.h"
 #include "ui/ozone/platform/dri/scoped_drm_types.h"
 
 namespace gfx {
 class Rect;
 }  // namespace gfx
 
 namespace ui {
 
 class DriWrapper;
 class CrtcController;
 
 // This contains the list of planes controlled by one HDC on a given DRM fd.
 // It is owned by the HDC and filled by the CrtcController.
-struct HardwareDisplayPlaneList {
+struct OZONE_EXPORT HardwareDisplayPlaneList {
   HardwareDisplayPlaneList();
   ~HardwareDisplayPlaneList();
 
   // This is the list of planes to be committed this time.
   std::vector<HardwareDisplayPlane*> plane_list;
   // This is the list of planes that was committed last time.
   std::vector<HardwareDisplayPlane*> old_plane_list;
 
   struct PageFlipInfo {
     PageFlipInfo(uint32_t crtc_id,
@@ skipping 21 matching lines @@
     std::vector<Plane> planes;
   };
   // In the case of non-atomic operation, this info will be used for
   // pageflipping.
   std::vector<PageFlipInfo> legacy_page_flips;
 
   // Set if the last operation on this list was a Commit().
   bool committed;
 };
 
-class HardwareDisplayPlaneManager {
+class OZONE_EXPORT HardwareDisplayPlaneManager {
  public:
   HardwareDisplayPlaneManager();
   virtual ~HardwareDisplayPlaneManager();
 
   // This parses information from the drm driver, adding any new planes
   // or crtcs found.
   bool Initialize(DriWrapper* drm);
 
   // Assign hardware planes from the |planes_| list to |overlay_list| entries,
   // recording the plane IDs in the |plane_list|. Only planes compatible with
@@ skipping 32 matching lines @@
 
   ScopedVector<HardwareDisplayPlane> planes_;
   std::vector<uint32_t> crtcs_;
 
   DISALLOW_COPY_AND_ASSIGN(HardwareDisplayPlaneManager);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRI_HARDWARE_DISPLAY_PLANE_MANAGER_H_