Add DCLayerOverlayProcessor and supporting DCLayer structures.

gpu/command_buffer/service/gles2_cmd_decoder_passthrough_doer_prototypes.h

Index: gpu/command_buffer/service/gles2_cmd_decoder_passthrough_doer_prototypes.h
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_passthrough_doer_prototypes.h b/gpu/command_buffer/service/gles2_cmd_decoder_passthrough_doer_prototypes.h
index fb4b4090287ce32fbbc0f69e2f660ddcbfb790a2..28d286c3840a3d701c5994c8a2ef1dcf70e92710 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_passthrough_doer_prototypes.h
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_passthrough_doer_prototypes.h
@@ -825,6 +825,16 @@ error::Error DoScheduleCALayerCHROMIUM(GLuint contents_texture_id,
 error::Error DoScheduleCALayerInUseQueryCHROMIUM(
     GLuint n,
     const volatile GLuint* textures);
+error::Error DoScheduleDCLayerSharedStateCHROMIUM(GLfloat opacity,
+                                                  GLboolean is_clipped,
+                                                  const GLfloat* clip_rect,
+                                                  GLint z_order,
+                                                  const GLfloat* transform);
+error::Error DoScheduleDCLayerCHROMIUM(GLuint contents_texture_id,
+                                       const GLfloat* contents_rect,
+                                       GLuint background_color,
+                                       GLuint edge_aa_mask,
+                                       const GLfloat* bounds_rect);
 error::Error DoCommitOverlayPlanesCHROMIUM();
 error::Error DoSwapInterval(GLint interval);
 error::Error DoFlushDriverCachesCHROMIUM();