Fix GPUTestConfigTest.LoadCurrentConfig on macOS Sierra.

gpu/config/gpu_test_config.cc

 // Copyright (c) 2012 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.
 
 #include "gpu/config/gpu_test_config.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/logging.h"
@@ skipping 46 matching lines @@
       case 7:
         return GPUTestConfig::kOsMacLion;
       case 8:
         return GPUTestConfig::kOsMacMountainLion;
       case 9:
         return GPUTestConfig::kOsMacMavericks;
       case 10:
         return GPUTestConfig::kOsMacYosemite;
       case 11:
         return GPUTestConfig::kOsMacElCapitan;
+      case 12:
+        return GPUTestConfig::kOsMacSierra;
     }
   }
 #elif defined(OS_ANDROID)
   return GPUTestConfig::kOsAndroid;
 #endif
   return GPUTestConfig::kOsUnknown;
 }
 
 }  // namespace anonymous
 
@@ skipping 105 matching lines @@
     case kOsWin7:
     case kOsWin8:
     case kOsWin10:
     case kOsMacLeopard:
     case kOsMacSnowLeopard:
     case kOsMacLion:
     case kOsMacMountainLion:
     case kOsMacMavericks:
     case kOsMacYosemite:
     case kOsMacElCapitan:
+    case kOsMacSierra:
     case kOsLinux:
     case kOsChromeOS:
     case kOsAndroid:
       break;
     default:
       return false;
   }
   if (validate_gpu_info_) {
     if (gpu_vendor().size() != 1 || gpu_vendor()[0] == 0)
       return false;
@@ skipping 102 matching lines @@
   // Blacklist rule #79 disables all Gpu acceleration before Windows 7.
   if (base::win::GetVersion() <= base::win::VERSION_VISTA) {
     return true;
   }
 #endif
   return false;
 }
 
 }  // namespace gpu