| Index: ios/chrome/browser/payments/js_payment_request_manager.mm
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| diff --git a/ios/chrome/browser/payments/js_payment_request_manager.mm b/ios/chrome/browser/payments/js_payment_request_manager.mm
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| index cd8cb5c1c9e5a5d83f472993e727a8f8a8feca54..48337a4af449e6d4e108aad974b0138b885b7892 100644
 | 
| --- a/ios/chrome/browser/payments/js_payment_request_manager.mm
 | 
| +++ b/ios/chrome/browser/payments/js_payment_request_manager.mm
 | 
| @@ -10,6 +10,10 @@
 | 
|  #include "base/values.h"
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|  #include "ios/web/public/payments/payment_request.h"
 | 
|  
 | 
| +#if !defined(__has_feature) || !__has_feature(objc_arc)
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| +#error "This file requires ARC support."
 | 
| +#endif
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| +
 | 
|  namespace {
 | 
|  
 | 
|  // Sanitizes |JSON| and wraps it in quotes so it can be injected safely in
 | 
| 
 |