Makes pinned tab restore on startup if you haven't enabled session

chrome/browser/tabs/pinned_tab_service.cc

+// Copyright (c) 2010 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/tabs/pinned_tab_service.h"
+
+#include "chrome/browser/browser.h"
+#include "chrome/browser/profile.h"
+#include "chrome/browser/tabs/pinned_tab_codec.h"
+#include "chrome/common/notification_service.h"
+#include "chrome/common/notification_type.h"
+
+PinnedTabService::PinnedTabService(Profile* profile)
+    : profile_(profile),
+      got_exiting_(false) {
+  registrar_.Add(this, NotificationType::BROWSER_CLOSING,
+                 NotificationService::AllSources());
+  registrar_.Add(this, NotificationType::APP_EXITING,
+                 NotificationService::AllSources());
+}
+
+void PinnedTabService::Observe(NotificationType type,
+                               const NotificationSource& source,
+                               const NotificationDetails& details) {
+  if (got_exiting_)
+    return;
+
+  switch (type.value) {
+    case NotificationType::BROWSER_CLOSING: {
+      Browser* browser = Source<Browser>(source).ptr();
+      if (browser->profile() == profile_ && *(Details<bool>(details)).ptr())
+        GotExit();
+      break;
+    }
+
+    case NotificationType::APP_EXITING: {
+      GotExit();
+      break;
+    }
+
+    default:
+      NOTREACHED();
+  }
+}
+
+void PinnedTabService::GotExit() {
+  DCHECK(!got_exiting_);
+  got_exiting_ = true;
+  PinnedTabCodec::WritePinnedTabs(profile_);
+}