Add support to send optimal format as part of ScheduleOverlayPlane

gpu/command_buffer/client/gles2_implementation.h

Index: gpu/command_buffer/client/gles2_implementation.h
diff --git a/gpu/command_buffer/client/gles2_implementation.h b/gpu/command_buffer/client/gles2_implementation.h
index 1c55b8367ccbbb737ad0311535f991252ab88138..6ca43fc6120bb0806c783aa65434d542d60800dd 100644
--- a/gpu/command_buffer/client/gles2_implementation.h
+++ b/gpu/command_buffer/client/gles2_implementation.h
@@ -30,6 +30,7 @@
 #include "gpu/command_buffer/common/capabilities.h"
 #include "gpu/command_buffer/common/debug_marker_manager.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
+#include "ui/gfx/buffer_types.h"
 
 #if !defined(NDEBUG) && !defined(__native_client__) && !defined(GLES2_CONFORMANCE_TESTS)  // NOLINT
   #if defined(GLES2_INLINE_OPTIMIZATION)
@@ -205,9 +206,11 @@ class GLES2_IMPL_EXPORT GLES2Implementation
   void CommitOverlayPlanes() override;
   void ScheduleOverlayPlane(int plane_z_order,
                             gfx::OverlayTransform plane_transform,
+                            gfx::BufferFormat optimal_storage_format,
                             unsigned overlay_texture_id,
                             const gfx::Rect& display_bounds,
-                            const gfx::RectF& uv_rect) override;
+                            const gfx::RectF& uv_rect,
+                            bool handle_scaling) override;
   GLuint InsertFutureSyncPointCHROMIUM() override;
   void RetireSyncPointCHROMIUM(GLuint sync_point) override;
   uint64_t ShareGroupTracingGUID() const override;