| Index: ios/chrome/browser/ui/voice/BUILD.gn
 | 
| diff --git a/ios/chrome/browser/ui/voice/BUILD.gn b/ios/chrome/browser/ui/voice/BUILD.gn
 | 
| index 6191193832ecf08cd4b9926737be50860de76df3..d093661c2efaf85451cc1862a71e88284cddad6d 100644
 | 
| --- a/ios/chrome/browser/ui/voice/BUILD.gn
 | 
| +++ b/ios/chrome/browser/ui/voice/BUILD.gn
 | 
| @@ -5,6 +5,7 @@
 | 
|  source_set("voice") {
 | 
|    configs += [ "//build/config/compiler:enable_arc" ]
 | 
|    sources = [
 | 
| +    "text_to_speech_player+subclassing.h",
 | 
|      "text_to_speech_player.h",
 | 
|      "text_to_speech_player.mm",
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|      "voice_search_notification_names.h",
 | 
| 
 |