Metrics for document.write script blocking

components/page_load_metrics/browser/page_load_metrics_util.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_PAGE_LOAD_METRICS_BROWSER_PAGE_LOAD_METRICS_UTIL_H_
 #define COMPONENTS_PAGE_LOAD_METRICS_BROWSER_PAGE_LOAD_METRICS_UTIL_H_
 
 #include "base/metrics/histogram_macros.h"
 #include "base/time/time.h"
 
@@ skipping 10 matching lines @@
 // Returns true if:
 // - We have timing information for the event.
 // - The page load started while the page was in the foreground.
 // - The event occurred prior to the page being moved to the background.
 // When a page is backgrounded, some events (e.g. paint) are delayed. Since
 // these data points can skew the mean, they should not be mixed with timing
 // events that occurred in the foreground.
 bool WasStartedInForegroundEventInForeground(base::TimeDelta event,
                                              const PageLoadExtraInfo& info);
 
+// Returns true if:
+// - Parse started and did not complete but the entire page load duration
+// happened in the foreground.
+// - Parse completed and happened entirely in the foreground.
+bool WasParseInForeground(base::TimeDelta parse_start,
+                          base::TimeDelta parse_stop,
+                          const PageLoadExtraInfo& info);
+
 }  // namespace page_load_metrics
 
 #endif  // COMPONENTS_PAGE_LOAD_METRICS_BROWSER_PAGE_LOAD_METRICS_UTIL_H_