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 ca855bca49b83bf3a2e33e1cd167ecb524e9dd2d..bf7089070a8bc837f2714caf2b6cf63fb44a8170 100644
--- a/mojo/gpu/mojo_gles2_impl_autogen.h
+++ b/mojo/gpu/mojo_gles2_impl_autogen.h
@@ -775,6 +775,7 @@ 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,
@@ -783,7 +784,8 @@ 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,