ozone: Avoid using gbm_bo_import until import and destroy can be synchronized.

ui/ozone/platform/drm/gpu/gbm_buffer.h

Index: ui/ozone/platform/drm/gpu/gbm_buffer.h
diff --git a/ui/ozone/platform/drm/gpu/gbm_buffer.h b/ui/ozone/platform/drm/gpu/gbm_buffer.h
index 8f011100e673df3e645980abce640170048f9d3a..b62ccfcc1d807662a72077ecc5896f17789e0bc4 100644
--- a/ui/ozone/platform/drm/gpu/gbm_buffer.h
+++ b/ui/ozone/platform/drm/gpu/gbm_buffer.h
@@ -42,12 +42,14 @@ class GbmBuffer : public GbmBufferBase {
             gbm_bo* bo,
             gfx::BufferFormat format,
             gfx::BufferUsage usage,
-            base::ScopedFD fd);
+            base::ScopedFD fd,
+            int stride);
   ~GbmBuffer() override;
 
   gfx::BufferFormat format_;
   gfx::BufferUsage usage_;
   base::ScopedFD fd_;
+  int stride_;
 
   DISALLOW_COPY_AND_ASSIGN(GbmBuffer);
 };