| Index: ios/chrome/browser/metrics/tab_usage_recorder.mm
|
| diff --git a/ios/chrome/browser/metrics/tab_usage_recorder.mm b/ios/chrome/browser/metrics/tab_usage_recorder.mm
|
| index f4d1b87b78d0bbb2c0a24b610b608d1203b5c8f3..2b73c6722376819ab1b24189285f15805b36d732 100644
|
| --- a/ios/chrome/browser/metrics/tab_usage_recorder.mm
|
| +++ b/ios/chrome/browser/metrics/tab_usage_recorder.mm
|
| @@ -13,10 +13,6 @@
|
| #import "ios/web/public/web_state/web_state.h"
|
| #import "ios/web/web_state/ui/crw_web_controller.h"
|
|
|
| -#if !defined(__has_feature) || !__has_feature(objc_arc)
|
| -#error "This file requires ARC support."
|
| -#endif
|
| -
|
| const char kTabUsageHistogramPrefix[] = "Tab";
|
|
|
| // The histogram recording the state of the tab the user switches to.
|
|
|