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

chrome/browser/page_load_metrics/observers/resource_prefetch_predictor_page_load_metrics_observer_unittest.cc

 // Copyright 2017 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/resource_prefetch_predictor_page_load_metrics_observer.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/page_load_metrics/observers/page_load_metrics_observer_test_harness.h"
@@ skipping 20 matching lines @@
 class ResourcePrefetchPredictorPageLoadMetricsObserverTest
     : public page_load_metrics::PageLoadMetricsObserverTestHarness {
  protected:
   void SetUp() override {
     page_load_metrics::PageLoadMetricsObserverTestHarness::SetUp();
     predictors::LoadingPredictorConfig config;
     config.mode = predictors::LoadingPredictorConfig::LEARNING;
     predictor_ =
         base::MakeUnique<testing::StrictMock<MockResourcePrefetchPredictor>>(
             config, profile());
+    page_load_metrics::InitPageLoadTimingForTest(&timing_);
     timing_.navigation_start = base::Time::FromDoubleT(1);
-    timing_.paint_timing.first_paint = base::TimeDelta::FromSeconds(2);
-    timing_.paint_timing.first_contentful_paint =
+    timing_.paint_timing->first_paint = base::TimeDelta::FromSeconds(2);
+    timing_.paint_timing->first_contentful_paint =
         base::TimeDelta::FromSeconds(3);
-    timing_.paint_timing.first_meaningful_paint =
+    timing_.paint_timing->first_meaningful_paint =
         base::TimeDelta::FromSeconds(4);
     PopulateRequiredTimingFields(&timing_);
   }
 
   void RegisterObservers(page_load_metrics::PageLoadTracker* tracker) override {
     tracker->AddObserver(
         base::MakeUnique<ResourcePrefetchPredictorPageLoadMetricsObserver>(
             predictor_.get(), web_contents()));
   }
 
   std::unique_ptr<testing::StrictMock<MockResourcePrefetchPredictor>>
       predictor_;
-  page_load_metrics::PageLoadTiming timing_;
+  page_load_metrics::mojom::PageLoadTiming timing_;
 };
 
 TEST_F(ResourcePrefetchPredictorPageLoadMetricsObserverTest,
        PrefetchableIsRecorded) {
   const GURL main_frame_url("https://www.google.com");
   EXPECT_CALL(*predictor_.get(), IsUrlPrefetchable(main_frame_url))
       .WillOnce(testing::Return(true));
 
   NavigateAndCommit(main_frame_url);
   SimulateTimingUpdate(timing_);
@@ skipping 11 matching lines @@
       .WillOnce(testing::Return(false));
 
   NavigateAndCommit(main_frame_url);
   SimulateTimingUpdate(timing_);
 
   histogram_tester().ExpectTotalCount(
       internal::kHistogramResourcePrefetchPredictorFirstContentfulPaint, 0);
   histogram_tester().ExpectTotalCount(
       internal::kHistogramResourcePrefetchPredictorFirstMeaningfulPaint, 0);
 }