Propagate supported scanout formats from driver to SurfaceFactoryOzone.

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

Index: ui/ozone/platform/drm/gpu/gbm_surface_factory.h
diff --git a/ui/ozone/platform/drm/gpu/gbm_surface_factory.h b/ui/ozone/platform/drm/gpu/gbm_surface_factory.h
index 5beb886865d6b24ffdaf11508f0d8ccdcb228547..a52a918c801fb70929a3119b0cc82e416c650f7b 100644
--- a/ui/ozone/platform/drm/gpu/gbm_surface_factory.h
+++ b/ui/ozone/platform/drm/gpu/gbm_surface_factory.h
@@ -31,6 +31,9 @@ class GbmSurfaceFactory : public SurfaceFactoryOzone {
   // SurfaceFactoryOzone:
   intptr_t GetNativeDisplay() override;
   const int32_t* GetEGLSurfaceProperties(const int32_t* desired_list) override;
+  bool GetSupportedFormats(
+      gfx::BufferUsage buffer_usage,
+      std::vector<gfx::BufferFormat>* support_formats) override;
   bool LoadEGLGLES2Bindings(
       AddGLLibraryCallback add_gl_library,
       SetGLGetProcAddressProcCallback set_gl_get_proc_address) override;
@@ -55,6 +58,9 @@ class GbmSurfaceFactory : public SurfaceFactoryOzone {
 
   std::map<gfx::AcceleratedWidget, GbmSurfaceless*> widget_to_surface_map_;
 
+  std::map<gfx::BufferUsage, std::vector<gfx::BufferFormat>>
+      support_formats_map_;
+
   DISALLOW_COPY_AND_ASSIGN(GbmSurfaceFactory);
 };