Reland: Ntp: restore scroll position.

content/browser/frame_host/navigation_controller_android.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 CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_ANDROID_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_ANDROID_H_
 
 #include <jni.h>
 
 #include "base/android/scoped_java_ref.h"
@@ skipping 117 matching lines @@
   jboolean CanPruneAllButLastCommitted(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj);
   void CopyStateFrom(JNIEnv* env,
                      const base::android::JavaParamRef<jobject>& obj,
                      jlong source_native_navigation_controller_android);
   void CopyStateFromAndPrune(JNIEnv* env,
                              const base::android::JavaParamRef<jobject>& obj,
                              jlong source_native_navigation_controller_android,
                              jboolean replace_entry);
+  base::android::ScopedJavaLocalRef<jstring> GetEntryExtraData(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj,
+      jint index,
+      const base::android::JavaParamRef<jstring>& jkey);
+  void SetEntryExtraData(JNIEnv* env,
+                         const base::android::JavaParamRef<jobject>& obj,
+                         jint index,
+                         const base::android::JavaParamRef<jstring>& jkey,
+                         const base::android::JavaParamRef<jstring>& jvalue);
 
  private:
   NavigationControllerImpl* navigation_controller_;
   base::android::ScopedJavaGlobalRef<jobject> obj_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationControllerAndroid);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_ANDROID_H_