[remote suggestions] Attach the fetch time to RemoteSnippets, ContentSnippets and SnippetArticle

components/ntp_snippets/content_suggestions_metrics_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 "components/ntp_snippets/content_suggestions_metrics.h"
 
 #include "base/test/histogram_tester.h"
 #include "base/time/time.h"
 #include "components/ntp_snippets/category.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace ntp_snippets {
 namespace metrics {
 namespace {
 
 using testing::ElementsAre;
 
 TEST(ContentSuggestionsMetricsTest, ShouldLogOnSuggestionsShown) {
   base::HistogramTester histogram_tester;
   OnSuggestionShown(/*global_position=*/1,
                     Category::FromKnownCategory(KnownCategories::ARTICLES),
-                    /*category_position=*/3,
-                    base::Time::Now(),
-                    base::Time::Now() - base::TimeDelta::FromHours(2),
-                    0.01f);
+                    /*category_position=*/3, base::Time::Now(), 0.01f,
+                    base::Time::Now() - base::TimeDelta::FromHours(2));
   // Test corner cases for score.
   OnSuggestionShown(/*global_position=*/1,
                     Category::FromKnownCategory(KnownCategories::ARTICLES),
-                    /*category_position=*/3, base::Time::Now(),
-                    base::Time::Now() - base::TimeDelta::FromHours(2), 0.0f);
+                    /*category_position=*/3, base::Time::Now(), 0.0f,
+                    base::Time::Now() - base::TimeDelta::FromHours(2));
   OnSuggestionShown(/*global_position=*/1,
                     Category::FromKnownCategory(KnownCategories::ARTICLES),
-                    /*category_position=*/3, base::Time::Now(),
-                    base::Time::Now() - base::TimeDelta::FromHours(2), 1.0f);
+                    /*category_position=*/3, base::Time::Now(), 1.0f,
+                    base::Time::Now() - base::TimeDelta::FromHours(2));
   OnSuggestionShown(/*global_position=*/1,
                     Category::FromKnownCategory(KnownCategories::ARTICLES),
-                    /*category_position=*/3, base::Time::Now(),
-                    base::Time::Now() - base::TimeDelta::FromHours(2), 8.0f);
+                    /*category_position=*/3, base::Time::Now(), 8.0f,
+                    base::Time::Now() - base::TimeDelta::FromHours(2));
 
   EXPECT_THAT(
       histogram_tester.GetAllSamples(
           "NewTabPage.ContentSuggestions.ShownScoreNormalized.Articles"),
       ElementsAre(base::Bucket(/*min=*/0, /*count=*/1),
                   base::Bucket(/*min=*/1, /*count=*/1),
                   base::Bucket(/*min=*/10, /*count=*/1),
                   base::Bucket(/*min=*/11, /*count=*/1)));
 }
 
 }  // namespace
 }  // namespace metrics
 }  // namespace ntp_snippets