Straighten up life cycle of native InfoBar pointers

chrome/android/java/src/org/chromium/chrome/browser/download/ChromeDownloadDelegate.java

 // Copyright 2015 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.
 
 package org.chromium.chrome.browser.download;
 
 import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.AsyncTask;
@@ skipping 230 matching lines @@
         if (mPendingRequest != null) return;
 
         mPendingRequest = downloadInfo;
 
         // TODO(dfalcantara): Ask ainslie@ for an icon to use for this InfoBar.
         int drawableId = 0;
         final String titleText = nativeGetDownloadWarningText(mPendingRequest.getFileName());
         final String okButtonText = mContext.getResources().getString(R.string.ok);
         final String cancelButtonText = mContext.getResources().getString(R.string.cancel);
 
-        mTab.getInfoBarContainer().addInfoBar(new ConfirmInfoBar(0,
+        mTab.getInfoBarContainer().addInfoBar(new ConfirmInfoBar(
                 this, drawableId, null, titleText, null, okButtonText, cancelButtonText));
     }
 
     /**
      * Called when a danagers download is about to start.
      *
      * @param filename File name of the download item.
      * @param downloadId ID of the download.
      */
     @Override
@@ skipping 249 matching lines @@
     }
 
     private static native String nativeGetDownloadWarningText(String filename);
     private static native boolean nativeIsDownloadDangerous(String filename);
     private static native void nativeDangerousDownloadValidated(
             Object tab, int downloadId, boolean accept);
     private static native void nativeLaunchDownloadOverwriteInfoBar(ChromeDownloadDelegate delegate,
             Tab tab, DownloadInfo downloadInfo, String fileName, String dirName,
             String dirFullPath);
 }