Switch to standard integer types in chrome/browser/, part 2 of 4.

chrome/browser/notifications/extension_welcome_notification.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 "chrome/browser/notifications/extension_welcome_notification.h"
 
+#include <stdint.h>
+
 #include <utility>
 
 #include "base/guid.h"
 #include "base/lazy_instance.h"
 #include "base/location.h"
+#include "base/macros.h"
 #include "base/prefs/pref_service.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/thread_task_runner_handle.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/notifications/notification.h"
 #include "chrome/browser/prefs/pref_service_syncable_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser_navigator.h"
 #include "chrome/browser/ui/browser_navigator_params.h"
@@ skipping 307 matching lines @@
 
 void ExtensionWelcomeNotification::ExpireWelcomeNotification() {
   DCHECK(IsWelcomeNotificationExpired());
   profile_->GetPrefs()->SetBoolean(
       prefs::kWelcomeNotificationDismissedLocal, true);
   HideWelcomeNotification();
 }
 
 base::Time ExtensionWelcomeNotification::GetExpirationTimestamp() const {
   PrefService* const pref_service = profile_->GetPrefs();
-  const int64 expiration_timestamp =
+  const int64_t expiration_timestamp =
       pref_service->GetInt64(prefs::kWelcomeNotificationExpirationTimestamp);
   return (expiration_timestamp == 0)
       ? base::Time()
       : base::Time::FromInternalValue(expiration_timestamp);
 }
 
 void ExtensionWelcomeNotification::SetExpirationTimestampFromNow() {
   PrefService* const pref_service = profile_->GetPrefs();
   pref_service->SetInt64(
       prefs::kWelcomeNotificationExpirationTimestamp,
       (delegate_->GetCurrentTime() +
           base::TimeDelta::FromDays(kRequestedShowTimeDays)).ToInternalValue());
 }
 
 bool ExtensionWelcomeNotification::IsWelcomeNotificationExpired() const {
   const base::Time expiration_timestamp = GetExpirationTimestamp();
   return !expiration_timestamp.is_null() &&
          (expiration_timestamp <= delegate_->GetCurrentTime());
 }