Ntp: restore scroll position.

chrome/browser/android/tab_android.h

Index: chrome/browser/android/tab_android.h
diff --git a/chrome/browser/android/tab_android.h b/chrome/browser/android/tab_android.h
index 544cb21f819a16df26a97354ab768a7b5e27518b..39d70a25dc0d3eb697cfc43284b7043d863129d6 100644
--- a/chrome/browser/android/tab_android.h
+++ b/chrome/browser/android/tab_android.h
@@ -212,6 +212,11 @@ class TabAndroid : public CoreTabHelperDelegate,
       const base::android::JavaParamRef<jobject>& obj,
       const base::android::JavaParamRef<jstring>& jurl,
       const base::android::JavaParamRef<jstring>& jtitle);
+  void SetLastCommittedNavigationEntryExtraData(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj,
+      const base::android::JavaParamRef<jstring>& jkey,
+      const base::android::JavaParamRef<jstring>& jvalue);
   bool Print(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
 
   // Sets the tab as content to be printed through JNI.