| Index: build/filename_rules.gypi
 | 
| diff --git a/build/filename_rules.gypi b/build/filename_rules.gypi
 | 
| index 6a271077f0f65bcbed7985c4d16e9c7c2c0dda3d..1de7e5d46b1d406dd4fde2a7ac97a02ad5204380 100644
 | 
| --- a/build/filename_rules.gypi
 | 
| +++ b/build/filename_rules.gypi
 | 
| @@ -75,6 +75,11 @@
 | 
|      ['use_aura==0 or OS!="win"', {
 | 
|        'sources/': [ ['exclude', '_aurawin\\.(h|cc)$'] ]
 | 
|      }],
 | 
| +    ['use_ash==0', {
 | 
| +      'sources/': [ ['exclude', '_ash(_unittest)?\\.(h|cc)$'],
 | 
| +                    ['exclude', '(^|/)ash/'],
 | 
| +      ]
 | 
| +    }],
 | 
|      ['use_wayland!=1', {
 | 
|        'sources/': [
 | 
|          ['exclude', '_(wayland)(_unittest)?\\.(h|cc)$'],
 | 
| 
 |