Export GetLastCommittedEntryIndex and RemoveEntryAtIndex to Java layer

content/browser/frame_host/navigation_controller_android.cc

Index: content/browser/frame_host/navigation_controller_android.cc
diff --git a/content/browser/frame_host/navigation_controller_android.cc b/content/browser/frame_host/navigation_controller_android.cc
index d6ab29b84fa2ec38d1b03b3910606a9647ebdb99..52ef78ee5d151bd63e974933a74612918a96f1fb 100644
--- a/content/browser/frame_host/navigation_controller_android.cc
+++ b/content/browser/frame_host/navigation_controller_android.cc
@@ -311,4 +311,15 @@ NavigationControllerAndroid::GetPendingEntry(JNIEnv* env, jobject obj) {
       env, entry, navigation_controller_->GetPendingEntryIndex());
 }
 
+jint NavigationControllerAndroid::GetLastCommittedEntryIndex(JNIEnv* env,
+                                                             jobject obj) {
+  return navigation_controller_->GetLastCommittedEntryIndex();
+}
+
+jboolean NavigationControllerAndroid::RemoveEntryAtIndex(JNIEnv* env,
+                                                         jobject obj,
+                                                         jint index) {
+  return navigation_controller_->RemoveEntryAtIndex(index);
+}
+
 }  // namespace content