Index: chrome/browser/metrics/desktop_session_duration/chrome_visibility_observer.h |
diff --git a/chrome/browser/metrics/desktop_session_duration/chrome_visibility_observer.h b/chrome/browser/metrics/desktop_session_duration/chrome_visibility_observer.h |
index 7cf00d26eab5bc28c3392404a7efc4217a1fd00b..7740391d4d43da57a1ec31ae0f1b8b4d38c177ab 100644 |
--- a/chrome/browser/metrics/desktop_session_duration/chrome_visibility_observer.h |
+++ b/chrome/browser/metrics/desktop_session_duration/chrome_visibility_observer.h |
@@ -6,6 +6,7 @@ |
#define CHROME_BROWSER_METRICS_DESKTOP_SESSION_DURATION_CHROME_VISIBILITY_OBSERVER_H_ |
#include "base/memory/weak_ptr.h" |
+#include "base/time/time.h" |
#include "chrome/browser/ui/browser_list_observer.h" |
namespace metrics { |
@@ -18,7 +19,7 @@ class ChromeVisibilityObserver : public chrome::BrowserListObserver { |
protected: |
// Notifies |DesktopSessionDurationTracker| of visibility changes. Overridden |
// by tests. |
- virtual void SendVisibilityChangeEvent(bool active); |
+ virtual void SendVisibilityChangeEvent(bool active, base::TimeDelta time_ago); |
private: |
// Cancels visibility change in case when the browser becomes visible after a |