Add prefs for collapsed currently open tabs group in new tab page

chrome/browser/android/new_tab_page_prefs.h

 // Copyright 2013 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_ANDROID_NEW_TAB_PAGE_PREFS_H_
 #define CHROME_BROWSER_ANDROID_NEW_TAB_PAGE_PREFS_H_
 
 #include <jni.h>
 
 #include "chrome/browser/profiles/profile.h"
 
 class NewTabPagePrefs {
  public:
   explicit NewTabPagePrefs(Profile* profile);
   void Destroy(JNIEnv* env, jobject obj);
 
+  jboolean GetCurrentlyOpenTabsCollapsed(JNIEnv* env, jobject obj);
+  void SetCurrentlyOpenTabsCollapsed(JNIEnv* env,
+                                     jobject obj,
+                                     jboolean is_collapsed);
+
   jboolean GetSnapshotDocumentCollapsed(JNIEnv* env, jobject obj);
   void SetSnapshotDocumentCollapsed(JNIEnv* env,
                                     jobject obj,
                                     jboolean is_collapsed);
 
   jboolean GetRecentlyClosedTabsCollapsed(JNIEnv* env, jobject obj);
   void SetRecentlyClosedTabsCollapsed(JNIEnv* env,
                                       jobject obj,
                                       jboolean is_collapsed);
 
@@ skipping 12 matching lines @@
   static bool RegisterNewTabPagePrefs(JNIEnv* env);
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
  private:
   virtual ~NewTabPagePrefs();
 
   Profile* profile_;  // weak
   DISALLOW_COPY_AND_ASSIGN(NewTabPagePrefs);
 };
 
 #endif  // CHROME_BROWSER_ANDROID_NEW_TAB_PAGE_PREFS_H_