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

ios/chrome/browser/tabs/tab_model_synced_window_delegate_getter.h

+// Copyright 2015 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.
+
+#ifndef IOS_CHROME_BROWSER_TABS_TAB_MODEL_SYNCED_WINDOW_DELEGATE_GETTER_H_
+#define IOS_CHROME_BROWSER_TABS_TAB_MODEL_SYNCED_WINDOW_DELEGATE_GETTER_H_
+
+#include <set>
+
+#include "base/macros.h"
+#include "components/sessions/core/session_id.h"
+#include "components/sync_sessions/synced_window_delegates_getter.h"
+
+namespace browser_sync {
+class SyncedWindowDelegate;
+}
+
+namespace ios {
+class ChromeBrowserState;
+}
+
+class TabModelSyncedWindowDelegatesGetter
+    : public sync_sessions::SyncedWindowDelegatesGetter {
+ public:
+  // TODO(crbug.com/548612): |browser_state| may be unnecessary as iOS does not
+  // supports multi-profile starting with M47. Should it be removed?
+  explicit TabModelSyncedWindowDelegatesGetter(
+      ios::ChromeBrowserState* browser_state);
+  ~TabModelSyncedWindowDelegatesGetter() override;
+
+  // sync_sessions::SyncedWindowDelegatesGetter:
+  std::set<const sync_sessions::SyncedWindowDelegate*>
+  GetSyncedWindowDelegates() override;
+  const sync_sessions::SyncedWindowDelegate* FindById(
+      SessionID::id_type id) override;
+
+ private:
+  const ios::ChromeBrowserState* const browser_state_;
+
+  DISALLOW_COPY_AND_ASSIGN(TabModelSyncedWindowDelegatesGetter);
+};
+
+#endif  // IOS_CHROME_BROWSER_TABS_TAB_MODEL_SYNCED_WINDOW_DELEGATE_GETTER_H_