Allow binding multiple textures to one DC Layer overlay.

gpu/command_buffer/client/gles2_cmd_helper_autogen.h

Index: gpu/command_buffer/client/gles2_cmd_helper_autogen.h
diff --git a/gpu/command_buffer/client/gles2_cmd_helper_autogen.h b/gpu/command_buffer/client/gles2_cmd_helper_autogen.h
index 2573fd9bc362655522e72c056a42ae9b9d5cc4a1..0733f7a6cf6a00c01a329e3850f43797e570d766 100644
--- a/gpu/command_buffer/client/gles2_cmd_helper_autogen.h
+++ b/gpu/command_buffer/client/gles2_cmd_helper_autogen.h
@@ -2836,8 +2836,15 @@ void ScheduleDCLayerSharedStateCHROMIUM(GLfloat opacity,
   }
 }
 
-void ScheduleDCLayerCHROMIUM(GLuint contents_texture_id,
-                             GLuint background_color,
+void SetDCLayerTextureCHROMIUM(GLuint index, GLuint contents_texture_id) {
+  gles2::cmds::SetDCLayerTextureCHROMIUM* c =
+      GetCmdSpace<gles2::cmds::SetDCLayerTextureCHROMIUM>();
+  if (c) {
+    c->Init(index, contents_texture_id);
+  }
+}
+
+void ScheduleDCLayerCHROMIUM(GLuint background_color,
                              GLuint edge_aa_mask,
                              GLuint filter,
                              GLuint shm_id,
@@ -2845,8 +2852,7 @@ void ScheduleDCLayerCHROMIUM(GLuint contents_texture_id,
   gles2::cmds::ScheduleDCLayerCHROMIUM* c =
       GetCmdSpace<gles2::cmds::ScheduleDCLayerCHROMIUM>();
   if (c) {
-    c->Init(contents_texture_id, background_color, edge_aa_mask, filter, shm_id,
-            shm_offset);
+    c->Init(background_color, edge_aa_mask, filter, shm_id, shm_offset);
   }
 }