Upstream Chrome on iOS source code [2/11].

ios/chrome/browser/tabs/tab_model_synced_window_delegate.mm

+// Copyright 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 "ios/chrome/browser/tabs/tab_model_synced_window_delegate.h"
+
+#include <set>
+
+#include "base/logging.h"
+#include "ios/chrome/browser/browser_state/chrome_browser_state.h"
+#include "ios/chrome/browser/sync/ios_chrome_synced_tab_delegate.h"
+#include "ios/chrome/browser/tabs/tab.h"
+#include "ios/chrome/browser/tabs/tab_model.h"
+#import "ios/chrome/browser/ui/browser_list_ios.h"
+#import "ios/web/public/web_state/web_state.h"
+
+TabModelSyncedWindowDelegate::TabModelSyncedWindowDelegate(TabModel* tab_model)
+    : tab_model_(tab_model) {}
+
+TabModelSyncedWindowDelegate::~TabModelSyncedWindowDelegate() {}
+
+bool TabModelSyncedWindowDelegate::IsTabPinned(
+    const sync_sessions::SyncedTabDelegate* tab) const {
+  return false;
+}
+
+sync_sessions::SyncedTabDelegate* TabModelSyncedWindowDelegate::GetTabAt(
+    int index) const {
+  sync_sessions::SyncedTabDelegate* delegate =
+      IOSChromeSyncedTabDelegate::FromWebState(
+          [tab_model_ tabAtIndex:index].webState);
+  if (!delegate) {
+    return nullptr;
+  }
+  return delegate;
+}
+
+SessionID::id_type TabModelSyncedWindowDelegate::GetTabIdAt(int index) const {
+  return GetTabAt(index)->GetSessionId();
+}
+
+bool TabModelSyncedWindowDelegate::IsSessionRestoreInProgress() const {
+  return false;
+}
+
+bool TabModelSyncedWindowDelegate::HasWindow() const {
+  return true;
+}
+
+SessionID::id_type TabModelSyncedWindowDelegate::GetSessionId() const {
+  return tab_model_.sessionID.id();
+}
+
+int TabModelSyncedWindowDelegate::GetTabCount() const {
+  return [tab_model_ count];
+}
+
+int TabModelSyncedWindowDelegate::GetActiveIndex() const {
+  Tab* current_tab = [tab_model_ currentTab];
+  DCHECK(current_tab);
+  return [tab_model_ indexOfTab:current_tab];
+}
+
+bool TabModelSyncedWindowDelegate::IsApp() const {
+  return false;
+}
+
+bool TabModelSyncedWindowDelegate::IsTypeTabbed() const {
+  return true;
+}
+
+bool TabModelSyncedWindowDelegate::IsTypePopup() const {
+  return false;
+}
+
+bool TabModelSyncedWindowDelegate::ShouldSync() const {
+  return true;
+}