Redo how AppBannerInfoBars are created and stored

chrome/android/java/src/org/chromium/chrome/browser/infobar/AppBannerInfoBarDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/infobar/AppBannerInfoBarDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/infobar/AppBannerInfoBarDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/infobar/AppBannerInfoBarDelegate.java
deleted file mode 100644
index 9573af6630a06c0e507ffb7c809c8b4d61c16747..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/infobar/AppBannerInfoBarDelegate.java
+++ /dev/null
@@ -1,28 +0,0 @@
-// 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.infobar;
-
-import android.graphics.Bitmap;
-
-import org.chromium.base.CalledByNative;
-
-/**
- * Handles creation of AppBannerInfoBars.
- */
-public class AppBannerInfoBarDelegate {
-    private AppBannerInfoBarDelegate() {
-    }
-
-    @CalledByNative
-    private static AppBannerInfoBarDelegate create() {
-        return new AppBannerInfoBarDelegate();
-    }
-
-    @CalledByNative
-    private InfoBar showInfoBar(
-            long nativeInfoBar, String appTitle, Bitmap iconBitmap, String buttonText, String url) {
-        return new AppBannerInfoBar(nativeInfoBar, appTitle, iconBitmap, buttonText, url);
-    }
-}