#ifndef CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_FROM_GWS_PAGE_LOAD_METRICS_OBSERVER_H_
#define CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_FROM_GWS_PAGE_LOAD_METRICS_OBSERVER_H_
#include <optional>
#include "base/time/time.h"
#include "components/google/core/common/google_util.h"
#include "components/page_load_metrics/browser/page_load_metrics_observer.h"
#include "services/metrics/public/cpp/ukm_source.h"
#include "url/gurl.h"
namespace internal {
extern const char kHistogramFromGWSDomContentLoaded[];
extern const char kHistogramFromGWSLoad[];
extern const char kHistogramFromGWSFirstPaint[];
extern const char kHistogramFromGWSFirstImagePaint[];
extern const char kHistogramFromGWSFirstContentfulPaint[];
extern const char kHistogramFromGWSLargestContentfulPaint[];
extern const char kHistogramFromGWSParseStartToFirstContentfulPaint[];
extern const char kHistogramFromGWSParseStart[];
extern const char kHistogramFromGWSFirstInputDelay[];
extern const char kHistogramFromGWSAbortStopBeforePaint[];
extern const char kHistogramFromGWSAbortStopBeforeInteraction[];
extern const char kHistogramFromGWSAbortStopBeforeCommit[];
extern const char kHistogramFromGWSAbortCloseBeforePaint[];
extern const char kHistogramFromGWSAbortCloseBeforeInteraction[];
extern const char kHistogramFromGWSAbortCloseBeforeCommit[];
extern const char kHistogramFromGWSAbortNewNavigationBeforeCommit[];
extern const char kHistogramFromGWSAbortNewNavigationBeforePaint[];
extern const char kHistogramFromGWSAbortNewNavigationBeforeInteraction[];
extern const char kHistogramFromGWSAbortReloadBeforeInteraction[];
extern const char kHistogramFromGWSForegroundDuration[];
extern const char kHistogramFromGWSForegroundDurationAfterPaint[];
extern const char kHistogramFromGWSForegroundDurationNoCommit[];
extern const char kHistogramFromGWSCumulativeLayoutShiftMainFrame[];
extern const char kHistogramFromGWSMaxCumulativeShiftScoreSessionWindow[];
extern const char kHistogramFromGWSFromSidePanelFirstInputDelay[];
extern const char
kHistogramFromGWSFromSidePanelMaxCumulativeShiftScoreSessionWindow[];
extern const char kHistogramFromGWSFromSidePanelFirstContentfulPaint[];
extern const char kHistogramFromGWSFromSidePanelFirstImagePaint[];
extern const char kHistogramFromGWSFromSidePanelLargestContentfulPaint[];
}
class FromGWSPageLoadMetricsLogger { … };
class FromGWSPageLoadMetricsObserver
: public page_load_metrics::PageLoadMetricsObserver { … };
#endif