[Page Load Metrics] Add mojom file to page load metrics.

chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer_unittest.cc

 // 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.
 
 #include "chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer.h"
 
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/page_load_metrics/observers/page_load_metrics_observer_test_harness.h"
 
 class AbortsPageLoadMetricsObserverTest
     : public page_load_metrics::PageLoadMetricsObserverTestHarness {
  protected:
   void RegisterObservers(page_load_metrics::PageLoadTracker* tracker) override {
     tracker->AddObserver(base::MakeUnique<AbortsPageLoadMetricsObserver>());
   }
 
   void SimulateTimingWithoutPaint() {
-    page_load_metrics::PageLoadTiming timing;
+    page_load_metrics::mojom::PageLoadTiming timing;
+    page_load_metrics::InitPageLoadTimingForTest(&timing);
     timing.navigation_start = base::Time::FromDoubleT(1);
     SimulateTimingUpdate(timing);
   }
 
   int CountTotalAbortMetricsRecorded() {
     base::HistogramTester::CountsMap counts_map =
         histogram_tester().GetTotalCountsForPrefix(
             "PageLoad.Experimental.AbortTiming.");
     int count = 0;
     for (const auto& entry : counts_map)
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   // Simulate the user performing another navigation before paint.
   NavigateAndCommit(GURL("https://www.example.com"));
   // Since the navigation to google.com had no timing information associated
   // with it, no abort is logged.
   histogram_tester().ExpectTotalCount(
       internal::kHistogramAbortNewNavigationBeforePaint, 0);
   EXPECT_EQ(0, CountTotalAbortMetricsRecorded());
 }
 
 TEST_F(AbortsPageLoadMetricsObserverTest, NoAbortNewNavigationAfterPaint) {
-  page_load_metrics::PageLoadTiming timing;
+  page_load_metrics::mojom::PageLoadTiming timing;
+  page_load_metrics::InitPageLoadTimingForTest(&timing);
   timing.navigation_start = base::Time::FromDoubleT(1);
-  timing.paint_timing.first_paint = base::TimeDelta::FromMicroseconds(1);
+  timing.paint_timing->first_paint = base::TimeDelta::FromMicroseconds(1);
   PopulateRequiredTimingFields(&timing);
   NavigateAndCommit(GURL("https://www.google.com"));
   SimulateTimingUpdate(timing);
 
   // The test cannot assume that abort time will be > first_paint
   // (1 micro-sec). If the system clock is low resolution, PageLoadTracker's
   // abort time may be <= first_paint. In that case the histogram will be
   // logged. Thus both 0 and 1 counts of histograms are considered good.
 
   NavigateAndCommit(GURL("https://www.example.com"));
 
   base::HistogramTester::CountsMap counts_map =
       histogram_tester().GetTotalCountsForPrefix(
           internal::kHistogramAbortNewNavigationBeforePaint);
 
   EXPECT_TRUE(counts_map.empty() ||
               (counts_map.size() == 1 && counts_map.begin()->second == 1));
 }