Export GetLastCommittedEntryIndex and RemoveEntryAtIndex to Java layer

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 59 matching lines @@
                                                              jobject /* obj */);
   int GetNavigationHistory(JNIEnv* env, jobject obj, jobject history);
   void GetDirectedNavigationHistory(JNIEnv* env,
                                     jobject obj,
                                     jobject history,
                                     jboolean is_forward,
                                     jint max_entries);
   base::android::ScopedJavaLocalRef<jstring>
       GetOriginalUrlForVisibleNavigationEntry(JNIEnv* env, jobject obj);
   void ClearHistory(JNIEnv* env, jobject obj);
+  int GetLastCommittedEntryIndex(JNIEnv* env, jobject obj);
+  jboolean RemoveEntryAtIndex(JNIEnv* env, jobject obj, jint index);
 
  private:
   NavigationController* navigation_controller_;
   base::android::ScopedJavaGlobalRef<jobject> obj_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationControllerAndroid);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_ANDROID_H_