Expand disable_multisampling_color_mask_usage workaround.

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>.
 
@@ skipping 1661 matching lines @@
       ]
     },
     {
       "id": 164,
       "cr_bugs": [595948],
       "description": "glColorMask does not work for multisample renderbuffers on old AMD GPUs.",
       "os": {
         "type": "macosx"
       },
       "vendor_id": "0x1002",
-      "device_id": ["0x68b8", "0x6720", "0x6741"],
+      "device_id": ["0x6720", "0x6740", "0x6741", "0x68b8"],
       "features": [
         "disable_multisampling_color_mask_usage"
       ]
     },
     {
       "id": 165,
       "cr_bugs": [596774],
       "description": "Unpacking overlapping rows from unpack buffers is unstable on NVIDIA GL driver",
       "gl_vendor": "NVIDIA.*",
       "features": [
@@ skipping 626 matching lines @@
       ]
     }
   ]
   // Please update the version number at beginning of this file whenever you
   // change this file.
 }
 
 );  // LONG_STRING_CONST macro
 
 }  // namespace gpu