Implement the Notification `timestamp` property

chrome/browser/notifications/platform_notification_service_browsertest.cc

 // Copyright 2014 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 <string>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/time/time.h"
 #include "chrome/browser/notifications/desktop_notification_profile_util.h"
 #include "chrome/browser/notifications/notification_permission_context.h"
 #include "chrome/browser/notifications/notification_permission_context_factory.h"
 #include "chrome/browser/notifications/notification_test_util.h"
 #include "chrome/browser/notifications/platform_notification_service_impl.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/website_settings/permission_bubble_manager.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/grit/generated_resources.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/test/browser_test_utils.h"
 #include "net/base/filename_util.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "ui/base/l10n/l10n_util.h"
 
 // -----------------------------------------------------------------------------
 
 // Dimensions of the icon.png resource in the notification test data directory.
 const int kIconWidth = 100;
 const int kIconHeight = 100;
 
 const int kNotificationVibrationPattern[] = { 100, 200, 300 };
+const double kNotificationTimestamp = 621046800000.;
 
 class PlatformNotificationServiceBrowserTest : public InProcessBrowserTest {
  public:
   PlatformNotificationServiceBrowserTest();
   ~PlatformNotificationServiceBrowserTest() override {}
 
   // InProcessBrowserTest overrides.
   void SetUp() override;
   void SetUpOnMainThread() override;
   void TearDown() override;
@@ skipping 182 matching lines @@
 
   // We don't use or check the notification's direction and language.
   const Notification& default_notification = ui_manager()->GetNotificationAt(0);
   EXPECT_EQ("Some title", base::UTF16ToUTF8(default_notification.title()));
   EXPECT_EQ("", base::UTF16ToUTF8(default_notification.message()));
   EXPECT_EQ("", default_notification.tag());
   EXPECT_TRUE(default_notification.icon().IsEmpty());
   EXPECT_FALSE(default_notification.silent());
   EXPECT_FALSE(default_notification.never_timeout());
 
+  // Verifies that the notification's default timestamp is set in the last 30
+  // seconds. This number has no significance, but it needs to be significantly
+  // high to avoid flakiness in the test.
+  EXPECT_NEAR(default_notification.timestamp().ToJsTime(),
+              base::Time::Now().ToJsTime(), 30 * 1000);
+
   // Now, test the non-default values.
 
   ASSERT_TRUE(RunScript("DisplayPersistentAllOptionsNotification()",
                         &script_result));
   EXPECT_EQ("ok", script_result);
 
   ASSERT_EQ(2u, ui_manager()->GetNotificationCount());
 
   // We don't use or check the notification's direction and language.
   const Notification& all_options_notification =
       ui_manager()->GetNotificationAt(1);
   EXPECT_EQ("Title", base::UTF16ToUTF8(all_options_notification.title()));
   EXPECT_EQ("Contents", base::UTF16ToUTF8(all_options_notification.message()));
   EXPECT_EQ("replace-id", all_options_notification.tag());
   EXPECT_FALSE(all_options_notification.icon().IsEmpty());
   EXPECT_TRUE(all_options_notification.silent());
   EXPECT_TRUE(all_options_notification.never_timeout());
+  EXPECT_DOUBLE_EQ(kNotificationTimestamp,
+                   all_options_notification.timestamp().ToJsTime());
 
   EXPECT_EQ(kIconWidth, all_options_notification.icon().Width());
   EXPECT_EQ(kIconHeight, all_options_notification.icon().Height());
 }
 
 IN_PROC_BROWSER_TEST_F(PlatformNotificationServiceBrowserTest,
                        WebNotificationSiteSettingsButton) {
   ASSERT_NO_FATAL_FAILURE(GrantNotificationPermissionForTest());
 
   std::string script_result;
@@ skipping 143 matching lines @@
 
   ASSERT_EQ(1u, ui_manager()->GetNotificationCount());
 
   const Notification& notification = ui_manager()->GetNotificationAt(0);
   EXPECT_FALSE(notification.icon().IsEmpty());
 
   EXPECT_EQ("Blob Title", base::UTF16ToUTF8(notification.title()));
   EXPECT_EQ(kIconWidth, notification.icon().Width());
   EXPECT_EQ(kIconHeight, notification.icon().Height());
 }