| Index: chrome/browser/extensions/api/usb/usb_api.cc
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| diff --git a/chrome/browser/extensions/api/usb/usb_api.cc b/chrome/browser/extensions/api/usb/usb_api.cc
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| index 1898fcb57184341c2aacf811a24c6895f4cf5c19..48a6840b6795695f57b0d3e9b5e2043e1a91b89c 100644
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| --- a/chrome/browser/extensions/api/usb/usb_api.cc
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| +++ b/chrome/browser/extensions/api/usb/usb_api.cc
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| @@ -65,7 +65,9 @@ const char kErrorOpen[] = "Failed to open device.";
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|  const char kErrorCancelled[] = "Transfer was cancelled.";
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|  const char kErrorDisconnect[] = "Device disconnected.";
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|  const char kErrorGeneric[] = "Transfer failed.";
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| +#if !defined(OS_CHROMEOS)
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|  const char kErrorNotSupported[] = "Not supported on this platform.";
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| +#endif
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|  const char kErrorOverflow[] = "Inbound transfer overflow.";
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|  const char kErrorStalled[] = "Transfer stalled.";
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|  const char kErrorTimeout[] = "Transfer timed out.";
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| 
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