Index: chrome/browser/page_load_metrics/observers/ads_page_load_metrics_observer.h |
diff --git a/chrome/browser/page_load_metrics/observers/ads_page_load_metrics_observer.h b/chrome/browser/page_load_metrics/observers/ads_page_load_metrics_observer.h |
index 91a95e580a0cb686f833bf1c2077714323b1eeb6..cb6603ad907005994fdc4b0af1396214c2d40553 100644 |
--- a/chrome/browser/page_load_metrics/observers/ads_page_load_metrics_observer.h |
+++ b/chrome/browser/page_load_metrics/observers/ads_page_load_metrics_observer.h |
@@ -13,6 +13,8 @@ |
#include "chrome/browser/page_load_metrics/page_load_metrics_observer.h" |
#include "net/http/http_response_info.h" |
+// This observer labels each sub-frame as an ad or not, and keeps track of |
+// relevant per-frame and whole-page byte statistics. |
class AdsPageLoadMetricsObserver |
: public page_load_metrics::PageLoadMetricsObserver { |
public: |