Remove last usage functions from HostContentSettingsMap and clean up prefs

chrome/browser/notifications/notification_interactive_uitest.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 <deque>
 #include <string>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
@@ skipping 741 matching lines @@
   EXPECT_NE("-1", result);
 
   ASSERT_EQ(1, GetNotificationCount());
   message_center::NotificationList::Notifications notifications =
       message_center::MessageCenter::Get()->GetVisibleNotifications();
   EXPECT_EQ(base::ASCIIToUTF16("Title2"), (*notifications.rbegin())->title());
   EXPECT_EQ(base::ASCIIToUTF16("Body2"),
             (*notifications.rbegin())->message());
 }
 
-IN_PROC_BROWSER_TEST_F(NotificationsTest, TestLastUsage) {
-  ASSERT_TRUE(embedded_test_server()->Start());
-
-  HostContentSettingsMap* settings_map =
-      HostContentSettingsMapFactory::GetForProfile(browser()->profile());
-  base::SimpleTestClock* clock = new base::SimpleTestClock();
-  settings_map->SetPrefClockForTesting(std::unique_ptr<base::Clock>(clock));
-  clock->SetNow(base::Time::UnixEpoch() + base::TimeDelta::FromSeconds(10));
-
-  // Creates a simple notification.
-  AllowAllOrigins();
-  ui_test_utils::NavigateToURL(browser(), GetTestPageURL());
-
-  std::string result = CreateSimpleNotification(browser(), true);
-  EXPECT_NE("-1", result);
-
-  EXPECT_EQ(settings_map->GetLastUsage(GetTestPageURL().GetOrigin(),
-                                       GetTestPageURL().GetOrigin(),
-                                       CONTENT_SETTINGS_TYPE_NOTIFICATIONS)
-                .ToDoubleT(),
-            10);
-
-  clock->Advance(base::TimeDelta::FromSeconds(3));
-
-  result = CreateSimpleNotification(browser(), true);
-  EXPECT_NE("-1", result);
-
-  EXPECT_EQ(settings_map->GetLastUsage(GetTestPageURL().GetOrigin(),
-                                       GetTestPageURL().GetOrigin(),
-                                       CONTENT_SETTINGS_TYPE_NOTIFICATIONS)
-                .ToDoubleT(),
-            13);
-}
-
 IN_PROC_BROWSER_TEST_F(NotificationsTest,
                        TestNotificationReplacementReappearance) {
   ASSERT_TRUE(embedded_test_server()->Start());
 
   // Test that we can replace a notification using the tag, and that it will
   // cause the notification to reappear as a popup again.
   AllowAllOrigins();
 
   ui_test_utils::NavigateToURL(browser(), GetTestPageURL());
 
@@ skipping 274 matching lines @@
       browser()->window()->GetNativeWindow()));
 
   std::string result = CreateSimpleNotification(browser(), true);
   EXPECT_NE("-1", result);
 
   ASSERT_EQ(1, GetNotificationCount());
   message_center::NotificationList::PopupNotifications notifications =
       message_center::MessageCenter::Get()->GetPopupNotifications();
   ASSERT_EQ(1u, notifications.size());
 }