The disable_seamless_cube_map workaround should only apply to primary Intel.

gpu/config/gpu_driver_bug_list_json.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Determines whether a certain driver bug exists in the current system.
 // The format of a valid gpu_driver_bug_list.json file is defined in
 // <gpu/config/gpu_control_list_format.txt>.
 // The supported "features" can be found in
 // <gpu/config/gpu_driver_bug_workaround_type.h>.
 
 #include "gpu/config/gpu_control_list_jsons.h"
 
 #define LONG_STRING_CONST(...) #__VA_ARGS__
 
 namespace gpu {
 
 const char kGpuDriverBugListJson[] = LONG_STRING_CONST(
 
 {
   "name": "gpu driver bug list",
   // Please update the version number whenever you change this file.
-  "version": "8.71",
+  "version": "8.72",
   "entries": [
     {
       "id": 1,
       "description": "Imagination driver doesn't like uploading lots of buffer data constantly",
       "os": {
         "type": "android"
       },
       "gl_vendor": "Imagination.*",
       "features": [
         "use_client_side_arrays_for_stream_buffers"
@@ skipping 1581 matching lines @@
       ]
     },
     {
       "id": 155,
       "cr_bugs": [597794],
       "description": "Seamless cubemap does not work for Mac Intel",
       "os": {
         "type": "macosx"
       },
       "vendor_id": "0x8086",
+      "multi_gpu_category": "primary",
       "features": [
         "disable_texture_cube_map_seamless"
       ]
     },
     {
       "id": 156,
       "cr_bugs": [598474],
       "description": "glEGLImageTargetTexture2DOES crashes",
       "os": {
         "type": "android",
@@ skipping 191 matching lines @@
       "features": [
         "use_shadowed_tex_level_params"
       ]
     }
   ]
 }
 
 );  // LONG_STRING_CONST macro
 
 }  // namespace gpu