Generalize the reload PLMO to support other transition types.

chrome/browser/page_load_metrics/observers/page_load_metrics_observer_test_harness.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 CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_PAGE_LOAD_METRICS_OBSERVER_TEST_HARNESS_H_
 #define CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_PAGE_LOAD_METRICS_OBSERVER_TEST_HARNESS_H_
 
 #include "base/macros.h"
 #include "base/test/histogram_tester.h"
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
 #include "components/page_load_metrics/browser/metrics_web_contents_observer.h"
 #include "content/public/test/web_contents_tester.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
+#include "ui/base/page_transition_types.h"
 
 namespace page_load_metrics {
 
 // This class can be used to drive tests of PageLoadMetricsObservers. To hook up
 // an observer, override RegisterObservers and call tracker->AddObserver. This
 // will attach the observer to all main frame navigations.
 class PageLoadMetricsObserverTestHarness
     : public ChromeRenderViewHostTestHarness {
  public:
   PageLoadMetricsObserverTestHarness();
   ~PageLoadMetricsObserverTestHarness() override;
 
   // Helper that fills in any timing fields that MWCO requires but that are
   // currently missing.
   static void PopulateRequiredTimingFields(PageLoadTiming* inout_timing);
 
   void SetUp() override;
 
   virtual void RegisterObservers(PageLoadTracker* tracker) {}
 
   // Simulates starting a navigation to the given gurl, without committing the
   // navigation.
   void StartNavigation(const GURL& gurl);
 
+  // Simulates committing a navigation to the given URL with the given
+  // PageTransition.
+  void NavigateWithPageTransitionAndCommit(const GURL& url,
+                                           ui::PageTransition transition);
+
   // Call this to simulate sending a PageLoadTiming IPC from the render process
   // to the browser process. These will update the timing information for the
   // most recently committed navigation.
   void SimulateTimingUpdate(const PageLoadTiming& timing);
   void SimulateTimingAndMetadataUpdate(const PageLoadTiming& timing,
                                        const PageLoadMetadata& metadata);
 
   // Simulates a user input.
   void SimulateInputEvent(const blink::WebInputEvent& event);
 
   const base::HistogramTester& histogram_tester() const;
 
   // Gets the PageLoadExtraInfo for the committed_load_ in observer_.
   const PageLoadExtraInfo GetPageLoadExtraInfoForCommittedLoad();
 
  private:
   base::HistogramTester histogram_tester_;
   MetricsWebContentsObserver* observer_;
 
   DISALLOW_COPY_AND_ASSIGN(PageLoadMetricsObserverTestHarness);
 };
 
 }  // namespace page_load_metrics
 
 #endif  // CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_PAGE_LOAD_METRICS_OBSERVER_TEST_HARNESS_H_