[page_load_metrics] User Initiated Abort Tracking (Observer version)

chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer.h

Index: chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer.h
diff --git a/chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer.h b/chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer.h
new file mode 100644
index 0000000000000000000000000000000000000000..c83815ae051990a1f48e096b5a879e88dc2f52b9
--- /dev/null
+++ b/chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer.h
@@ -0,0 +1,44 @@
+// 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 CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_ABORTS_PAGE_LOAD_METRICS_OBSERVER_H_
+#define CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_ABORTS_PAGE_LOAD_METRICS_OBSERVER_H_
+
+#include "components/page_load_metrics/browser/page_load_metrics_observer.h"
+
+const char kHistogramAbortForwardBackBeforeCommit[] =
+    "PageLoad.AbortTiming.ForwardBackNavigation.BeforeCommit";
+const char kHistogramAbortReloadBeforeCommit[] =
+    "PageLoad.AbortTiming.Reload.BeforeCommit";
+const char kHistogramAbortNewNavigationBeforeCommit[] =
+    "PageLoad.AbortTiming.NewNavigation.BeforeCommit";
+const char kHistogramAbortStopBeforeCommit[] =
+    "PageLoad.AbortTiming.Stop.BeforeCommit";
+const char kHistogramAbortCloseBeforeCommit[] =
+    "PageLoad.AbortTiming.Close.BeforeCommit";
+const char kHistogramAbortOtherBeforeCommit[] =
+    "PageLoad.AbortTiming.Other.BeforeCommit";
+const char kHistogramAbortForwardBackBeforePaint[] =
+    "PageLoad.AbortTiming.ForwardBackNavigation.AfterCommit.BeforePaint";
+const char kHistogramAbortReloadBeforePaint[] =
+    "PageLoad.AbortTiming.Reload.AfterCommit.BeforePaint";
+const char kHistogramAbortNewNavigationBeforePaint[] =
+    "PageLoad.AbortTiming.NewNavigation.AfterCommit.BeforePaint";
+const char kHistogramAbortStopBeforePaint[] =
+    "PageLoad.AbortTiming.Stop.AfterCommit.BeforePaint";
+const char kHistogramAbortCloseBeforePaint[] =
+    "PageLoad.AbortTiming.Close.AfterCommit.BeforePaint";
+
+class AbortsPageLoadMetricsObserver
+    : public page_load_metrics::PageLoadMetricsObserver {
+ public:
+  AbortsPageLoadMetricsObserver();
+
+  // page_load_metrics::PageLoadMetricsObserver implementation:
+  void OnComplete(
+      const page_load_metrics::PageLoadTiming& timing,
+      const page_load_metrics::PageLoadExtraInfo& extra_info) override;
+};
+
+#endif  // CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_ABORTS_PAGE_LOAD_METRICS_OBSERVER_H_