Revert of Track task ids for navigations cross multiple tabs.

components/sync_sessions/task_tracker_unittest.cc

Index: components/sync_sessions/task_tracker_unittest.cc
diff --git a/components/sync_sessions/task_tracker_unittest.cc b/components/sync_sessions/task_tracker_unittest.cc
index 5dc0c361b65a9ef50ee42ed335b2d09de3bec43b..40fd0424d4d118b7904378366e637d8b8811ff64 100644
--- a/components/sync_sessions/task_tracker_unittest.cc
+++ b/components/sync_sessions/task_tracker_unittest.cc
@@ -10,7 +10,6 @@
 #include "testing/gtest/include/gtest/gtest.h"
 
 using testing::ElementsAre;
-using testing::ElementsAreArray;
 using testing::SizeIs;
 
 namespace sync_sessions {
@@ -196,73 +195,4 @@
               ElementsAre((kMaxNumTasksPerTab + 2) * 100));
 }
 
-TEST(TaskTrackerTest, CreateTabTasksFromSourceTab) {
-  TaskTracker task_tracker;
-  TabTasks* source_tab_tasks = task_tracker.GetTabTasks(kTab1);
-  source_tab_tasks->UpdateWithNavigation(1, ui::PAGE_TRANSITION_LINK, 100);
-  source_tab_tasks->UpdateWithNavigation(2, ui::PAGE_TRANSITION_LINK, 200);
-  source_tab_tasks->UpdateWithNavigation(3, ui::PAGE_TRANSITION_TYPED, 300);
-  source_tab_tasks->UpdateWithNavigation(4, ui::PAGE_TRANSITION_LINK, 400);
-  source_tab_tasks->UpdateWithNavigation(5, ui::PAGE_TRANSITION_LINK, 500);
-
-  TabTasks* target_tab_tasks = task_tracker.GetTabTasks(kTab2, kTab1);
-  target_tab_tasks->UpdateWithNavigation(1, ui::PAGE_TRANSITION_LINK, 600);
-  target_tab_tasks->UpdateWithNavigation(2, ui::PAGE_TRANSITION_LINK, 700);
-  target_tab_tasks->UpdateWithNavigation(3, ui::PAGE_TRANSITION_TYPED, 800);
-
-  EXPECT_THAT(target_tab_tasks->GetTaskIdsForNavigation(1),
-              ElementsAre(300, 400, 500, 600));
-  EXPECT_THAT(target_tab_tasks->GetTaskIdsForNavigation(2),
-              ElementsAre(300, 400, 500, 600, 700));
-  EXPECT_THAT(target_tab_tasks->GetTaskIdsForNavigation(3), ElementsAre(800));
-}
-
-TEST(TaskTrackerTest, CreateTabTasksFromSourceTabAfterGoingBack) {
-  TaskTracker task_tracker;
-  TabTasks* source_tab_tasks = task_tracker.GetTabTasks(kTab1);
-  source_tab_tasks->UpdateWithNavigation(1, ui::PAGE_TRANSITION_LINK, 100);
-  source_tab_tasks->UpdateWithNavigation(2, ui::PAGE_TRANSITION_LINK, 200);
-  source_tab_tasks->UpdateWithNavigation(3, ui::PAGE_TRANSITION_TYPED, 300);
-  source_tab_tasks->UpdateWithNavigation(4, ui::PAGE_TRANSITION_LINK, 400);
-  source_tab_tasks->UpdateWithNavigation(5, ui::PAGE_TRANSITION_LINK, 500);
-  source_tab_tasks->UpdateWithNavigation(
-      2,
-      ui::PageTransitionFromInt(ui::PAGE_TRANSITION_LINK |
-                                ui::PAGE_TRANSITION_FORWARD_BACK),
-      600);
-  ASSERT_THAT(source_tab_tasks->GetTaskIdsForNavigation(2),
-              ElementsAre(100, 200));
-
-  TabTasks* target_tab_tasks = task_tracker.GetTabTasks(kTab2, kTab1);
-  target_tab_tasks->UpdateWithNavigation(1, ui::PAGE_TRANSITION_LINK, 700);
-
-  EXPECT_THAT(target_tab_tasks->GetTaskIdsForNavigation(1),
-              ElementsAre(100, 200, 700));
-}
-
-TEST(TaskTrackerTest, CreateTabTasksFromSourceTabWithLimitedTaskNum) {
-  const int kMaxNumTasksPerTab = 100;
-  TaskTracker task_tracker;
-
-  TabTasks* source_tab_tasks = task_tracker.GetTabTasks(kTab1);
-  // Adding max number of tasks to tab1.
-  for (int i = 0; i < kMaxNumTasksPerTab; i++) {
-    source_tab_tasks->UpdateWithNavigation(i, ui::PAGE_TRANSITION_LINK,
-                                           i * 100);
-  }
-
-  TabTasks* tab_tasks = task_tracker.GetTabTasks(kTab2, kTab1);
-  tab_tasks->UpdateWithNavigation(0, ui::PAGE_TRANSITION_LINK,
-                                  kMaxNumTasksPerTab * 100);
-
-  std::vector<int64_t> task_ids = tab_tasks->GetTaskIdsForNavigation(0);
-  // The first task from source tab is excluded because of max task number
-  // limit.
-  int expected_task_ids[kMaxNumTasksPerTab];
-  for (int i = 0; i < kMaxNumTasksPerTab; i++)
-    expected_task_ids[i] = (i + 1) * 100;
-  EXPECT_THAT(task_ids,
-              ElementsAreArray(expected_task_ids, kMaxNumTasksPerTab));
-}
-
 }  // namespace sync_sessions