[NTP] Fix article suggestion clicks contributing to Most Visited tiles

components/history/core/browser/history_backend_unittest.cc

 // Copyright (c) 2012 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/history/core/browser/history_backend.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 3788 matching lines @@
 
   // Verify that the second term is no longer returned as result, and also check
   // at the low level that it is gone for good. The term corresponding to the
   // first URLRow should not be affected.
   EXPECT_EQ(1u, GetNumberOfMatchingSearchTerms(kTestKeywordId, term1));
   EXPECT_EQ(0u, GetNumberOfMatchingSearchTerms(kTestKeywordId, term2));
   EXPECT_TRUE(mem_backend_->db()->GetKeywordSearchTermRow(row1.id(), NULL));
   EXPECT_FALSE(mem_backend_->db()->GetKeywordSearchTermRow(row2.id(), NULL));
 }
 
+TEST_F(HistoryBackendTest, QueryMostVisitedURLs) {
+  ASSERT_TRUE(backend_.get());
+
+  std::vector<std::pair<GURL, ui::PageTransition>> pages;
+  pages.emplace_back(GURL("http://typed.com"), ui::PAGE_TRANSITION_TYPED);
+  pages.emplace_back(GURL("http://auto-bookmark.com"),
+                     ui::PAGE_TRANSITION_AUTO_BOOKMARK);
+  pages.emplace_back(GURL("https://auto-bookmark-https.com"),
+                     ui::PAGE_TRANSITION_AUTO_BOOKMARK);
+  pages.emplace_back(GURL("http://link.com"), ui::PAGE_TRANSITION_LINK);
+  pages.emplace_back(GURL("https://link-https.com"), ui::PAGE_TRANSITION_LINK);
+  pages.emplace_back(GURL("data:,some-data"),
+                     ui::PAGE_TRANSITION_AUTO_BOOKMARK);
+  pages.emplace_back(GURL("https://typed-https.com"),
+                     ui::PAGE_TRANSITION_TYPED);
+
+  for (size_t i = 0; i < pages.size(); ++i) {
+    HistoryAddPageArgs args;
+    args.url = pages[i].first;
+    args.time = base::Time::Now() - base::TimeDelta::FromDays(i + 1);
+    args.transition = pages[i].second;
+    backend_->AddPage(args);
+  }
+
+  MostVisitedURLList most_visited;
+  backend_->QueryMostVisitedURLs(100, 100, &most_visited);
+
+  const base::string16 kSomeTitle;  // Ignored by equality operator.
+  EXPECT_THAT(
+      most_visited,
+      ElementsAre(
+          MostVisitedURL(GURL("http://typed.com"), kSomeTitle),
+          MostVisitedURL(GURL("http://auto-bookmark.com"), kSomeTitle),
+          MostVisitedURL(GURL("https://auto-bookmark-https.com"), kSomeTitle),
+          MostVisitedURL(GURL("https://typed-https.com"), kSomeTitle)));
+}
+
 }  // namespace history