predictors: Move more methods from ResourcePrefetchPredictor into LoadingDataCollector.

chrome/browser/page_load_metrics/observers/loading_predictor_page_load_metrics_observer_unittest.cc

Index: chrome/browser/page_load_metrics/observers/loading_predictor_page_load_metrics_observer_unittest.cc
diff --git a/chrome/browser/page_load_metrics/observers/loading_predictor_page_load_metrics_observer_unittest.cc b/chrome/browser/page_load_metrics/observers/loading_predictor_page_load_metrics_observer_unittest.cc
index cfbd42e162c749c14cf042d036bcdd2e027559da..775f4c91fe4e7f3c9201495997d439caefa85095 100644
--- a/chrome/browser/page_load_metrics/observers/loading_predictor_page_load_metrics_observer_unittest.cc
+++ b/chrome/browser/page_load_metrics/observers/loading_predictor_page_load_metrics_observer_unittest.cc
@@ -30,6 +30,13 @@ class MockResourcePrefetchPredictor : public ResourcePrefetchPredictor {
   ~MockResourcePrefetchPredictor() override {}
 };
 
+class MockLoadingDataCollector : public LoadingDataCollector {
+ public:
+  MOCK_METHOD2(RecordFirstContentfulPaint,
+               void(const predictors::NavigationID& navigation_id,
+                    const base::TimeTicks& first_contentful_paint));
+};
+
 class LoadingPredictorPageLoadMetricsObserverTest
     : public page_load_metrics::PageLoadMetricsObserverTestHarness {
  protected:
@@ -41,7 +48,8 @@ class LoadingPredictorPageLoadMetricsObserverTest
         base::MakeUnique<testing::StrictMock<MockResourcePrefetchPredictor>>(
             config, profile());
     page_load_metrics::InitPageLoadTimingForTest(&timing_);
-    collector_ = base::MakeUnique<LoadingDataCollector>(predictor_.get());
+    collector_ = base::MakeUnique<testing::StrictMock<LoadingDataCollector>>(
+        predictor_.get(), nullptr, config);
     timing_.navigation_start = base::Time::FromDoubleT(1);
     timing_.paint_timing->first_paint = base::TimeDelta::FromSeconds(2);
     timing_.paint_timing->first_contentful_paint =