Update from https://crrev.com/311076

gpu/command_buffer/service/gles2_cmd_validation_implementation_autogen.h

Index: gpu/command_buffer/service/gles2_cmd_validation_implementation_autogen.h
diff --git a/gpu/command_buffer/service/gles2_cmd_validation_implementation_autogen.h b/gpu/command_buffer/service/gles2_cmd_validation_implementation_autogen.h
index a1e5c749642ee9dbde348813cc0bd9e951327205..d81b8965d9fb7384750dd99f8b2c674151c1a7af 100644
--- a/gpu/command_buffer/service/gles2_cmd_validation_implementation_autogen.h
+++ b/gpu/command_buffer/service/gles2_cmd_validation_implementation_autogen.h
@@ -252,6 +252,11 @@ static const GLenum valid_index_type_table[] = {
     GL_UNSIGNED_SHORT,
 };
 
+static const GLenum valid_indexed_buffer_target_table[] = {
+    GL_TRANSFORM_FEEDBACK_BUFFER,
+    GL_UNIFORM_BUFFER,
+};
+
 static const GLenum valid_matrix_mode_table[] = {
     GL_PATH_PROJECTION_CHROMIUM,
     GL_PATH_MODELVIEW_CHROMIUM,
@@ -593,6 +598,8 @@ Validators::Validators()
                             arraysize(valid_image_internal_format_table)),
       image_usage(valid_image_usage_table, arraysize(valid_image_usage_table)),
       index_type(valid_index_type_table, arraysize(valid_index_type_table)),
+      indexed_buffer_target(valid_indexed_buffer_target_table,
+                            arraysize(valid_indexed_buffer_target_table)),
       matrix_mode(valid_matrix_mode_table, arraysize(valid_matrix_mode_table)),
       pixel_store(valid_pixel_store_table, arraysize(valid_pixel_store_table)),
       pixel_store_alignment(valid_pixel_store_alignment_table,