Add ES3 commands GetVertexAttribI{u}iv to GPU command buffer.

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 091eddafd0a0377b1b9a329e28f372d0fd94ea5b..c02f1179fd1c77bb2dd0f9ab2a3a3f0794aefec0 100644
--- a/gpu/command_buffer/service/gles2_cmd_validation_implementation_autogen.h
+++ b/gpu/command_buffer/service/gles2_cmd_validation_implementation_autogen.h
@@ -913,6 +913,11 @@ static const GLenum valid_vertex_attribute_table[] = {
     GL_CURRENT_VERTEX_ATTRIB,
 };
 
+static const GLenum valid_vertex_attribute_table_es3[] = {
+    GL_VERTEX_ATTRIB_ARRAY_INTEGER,
+    GL_VERTEX_ATTRIB_ARRAY_DIVISOR,
+};
+
 static const GLenum valid_vertex_pointer_table[] = {
     GL_VERTEX_ATTRIB_ARRAY_POINTER,
 };
@@ -1081,6 +1086,8 @@ void Validators::UpdateValuesES3() {
   texture_internal_format_storage.AddValues(
       valid_texture_internal_format_storage_table_es3,
       arraysize(valid_texture_internal_format_storage_table_es3));
+  vertex_attribute.AddValues(valid_vertex_attribute_table_es3,
+                             arraysize(valid_vertex_attribute_table_es3));
 }
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_VALIDATION_IMPLEMENTATION_AUTOGEN_H_