Add support to send optimal format as part of ScheduleOverlayPlane

mojo/gpu/mojo_gles2_impl_autogen.h

Index: mojo/gpu/mojo_gles2_impl_autogen.h
diff --git a/mojo/gpu/mojo_gles2_impl_autogen.h b/mojo/gpu/mojo_gles2_impl_autogen.h
index c00372ddbe1b7a004ad52b62b89b2ab41dabe76b..fe62ba79587572b49e95afae8ca85494c5edb778 100644
--- a/mojo/gpu/mojo_gles2_impl_autogen.h
+++ b/mojo/gpu/mojo_gles2_impl_autogen.h
@@ -774,6 +774,7 @@ class MojoGLES2Impl : public gpu::gles2::GLES2Interface {
   void DiscardBackbufferCHROMIUM() override;
   void ScheduleOverlayPlaneCHROMIUM(GLint plane_z_order,
                                     GLenum plane_transform,
+                                    GLuint storage_format,
                                     GLuint overlay_texture_id,
                                     GLint bounds_x,
                                     GLint bounds_y,
@@ -782,7 +783,8 @@ class MojoGLES2Impl : public gpu::gles2::GLES2Interface {
                                     GLfloat uv_x,
                                     GLfloat uv_y,
                                     GLfloat uv_width,
-                                    GLfloat uv_height) override;
+                                    GLfloat uv_height,
+                                    GLboolean handle_scaling) override;
   void ScheduleCALayerCHROMIUM(GLuint contents_texture_id,
                                const GLfloat* contents_rect,
                                GLfloat opacity,