Refactor SyncedWindowDelegateAndroid into TabModel

chrome/browser/ui/android/tab_model/tab_model.h

+// Copyright (c) 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.
+
+#ifndef CHROME_BROWSER_UI_ANDROID_TAB_MODEL_TAB_MODEL_H_
+#define CHROME_BROWSER_UI_ANDROID_TAB_MODEL_TAB_MODEL_H_
+
+#include "chrome/browser/sessions/session_id.h"
+
+namespace browser_sync {
+class SyncedWindowDelegate;
+}
+
+namespace content {
+class WebContents;
+}
+
+class Profile;
+class TabContents;
+
+// Abstract representation of a Tab Model for Android.  Since Android does
+// not use Browser/BrowserList, this is required to allow Chrome to interact
+// with Android's Tabs and Tab Model.
+class TabModel {
+ public:
+  TabModel();
+  virtual ~TabModel();
+
+  virtual SessionID::id_type GetSessionId() const = 0;
+  virtual int GetTabCount() const = 0;
+  virtual int GetActiveIndex() const = 0;
+  virtual TabContents* GetTabContentsAt(int index) const = 0;
+  virtual SessionID::id_type GetTabIdAt(int index) const = 0;
+
+  // Used for restoring tabs from synced foreign sessions.
+  virtual void CreateTab(content::WebContents* web_contents) = 0;
+
+  // Return true if we are currently restoring sessions asynchronously.
+  virtual bool IsSessionRestoreInProgress() const = 0;
+
+  virtual void OpenClearBrowsingData() const = 0;
+  virtual Profile* GetProfile() const = 0;
+
+  virtual browser_sync::SyncedWindowDelegate* GetSyncedWindowDelegate() = 0;
+
+ protected:
+  // Instructs the TabModel to broadcast a notification that all tabs are now
+  // loaded from storage.
+  void BroadcastSessionRestoreComplete();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(TabModel);
+};
+
+#endif  // CHROME_BROWSER_UI_ANDROID_TAB_MODEL_TAB_MODEL_H_