Move the Mac Task Manager to the new backend code.

chrome/browser/ui/views/new_task_manager_view_browsertest.cc

 // Copyright 2015 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 <stddef.h>
 
 #include "base/macros.h"
 #include "base/strings/pattern.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 208 matching lines @@
   // If the user re-triggers chrome::ShowTaskManager (e.g. via shift-esc), this
   // should set the TaskManager selection to the active tab.
   chrome::ShowTaskManager(browser());
 
   EXPECT_EQ(1, GetTable()->SelectedRowCount());
   EXPECT_EQ(GetTable()->FirstSelectedRow(),
             FindRowForTab(browser()->tab_strip_model()->GetWebContentsAt(0)));
 }
 
 IN_PROC_BROWSER_TEST_F(NewTaskManagerViewTest, SelectionConsistency) {
+  ASSERT_NO_FATAL_FAILURE(ClearStoredColumnSettings());
+
   chrome::ShowTaskManager(browser());
 
   // Set up a total of three tabs in different processes.
   ui_test_utils::NavigateToURL(
       browser(), embedded_test_server()->GetURL("a.com", "/title2.html"));
   ui_test_utils::NavigateToURLWithDisposition(
       browser(), embedded_test_server()->GetURL("b.com", "/title2.html"),
       NEW_FOREGROUND_TAB, ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
   ui_test_utils::NavigateToURLWithDisposition(
       browser(), embedded_test_server()->GetURL("c.com", "/title2.html"),
@@ skipping 16 matching lines @@
       continue;
     content::WebContents* tab = FindWebContentsByTabId(tester->GetTabId(i));
     EXPECT_NE(nullptr, tab);
     tabs.push_back(tab);
   }
   EXPECT_EQ(3U, tabs.size());
 
   // Select the middle row, and store its tab id.
   GetTable()->Select(FindRowForTab(tabs[1]));
   EXPECT_EQ(GetTable()->FirstSelectedRow(), FindRowForTab(tabs[1]));
+  EXPECT_EQ(1, GetTable()->SelectedRowCount());
 
   // Add 3 rows above the selection. The selected tab should not change.
   for (int i = 0; i < 3; ++i) {
     ASSERT_TRUE(content::ExecuteScript(tabs[0], "window.open('title3.html');"));
     EXPECT_EQ(GetTable()->FirstSelectedRow(), FindRowForTab(tabs[1]));
   }
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows((rows += 3), pattern));
   EXPECT_EQ(GetTable()->FirstSelectedRow(), FindRowForTab(tabs[1]));
+  EXPECT_EQ(1, GetTable()->SelectedRowCount());
 
   // Add 2 rows below the selection. The selected tab should not change.
   for (int i = 0; i < 2; ++i) {
     ASSERT_TRUE(content::ExecuteScript(tabs[2], "window.open('title3.html');"));
     EXPECT_EQ(GetTable()->FirstSelectedRow(), FindRowForTab(tabs[1]));
   }
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows((rows += 2), pattern));
   EXPECT_EQ(GetTable()->FirstSelectedRow(), FindRowForTab(tabs[1]));
+  EXPECT_EQ(1, GetTable()->SelectedRowCount());
 
   // Add a new row in the same process as the selection. The selected tab should
   // not change.
   ASSERT_TRUE(content::ExecuteScript(tabs[1], "window.open('title3.html');"));
   EXPECT_EQ(GetTable()->FirstSelectedRow(), FindRowForTab(tabs[1]));
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows((rows += 1), pattern));
   EXPECT_EQ(GetTable()->FirstSelectedRow(), FindRowForTab(tabs[1]));
   EXPECT_EQ(1, GetTable()->SelectedRowCount());
 
   // Press the button, which kills the process of the selected row.
@@ skipping 21 matching lines @@
   EXPECT_EQ(GetTable()->FirstSelectedRow(), FindRowForTab(tabs[2]));
 
   // Close tabs[0]. The selection should not change.
   chrome::CloseWebContents(browser(), tabs[0], false);
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows((rows -= 1), pattern));
   EXPECT_EQ(GetTable()->FirstSelectedRow(), FindRowForTab(tabs[2]));
 }
 
 }  // namespace task_management