Update content setting for app banners to store more information.

chrome/browser/android/banners/app_banner_settings_helper.h

-// Copyright 2014 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 CHROME_BROWSER_ANDROID_BANNERS_APP_BANNER_SETTINGS_HELPER_H_
-#define CHROME_BROWSER_ANDROID_BANNERS_APP_BANNER_SETTINGS_HELPER_H_
-
-#include <string>
-
-#include "base/macros.h"
-
-namespace content {
-class WebContents;
-}  // namesapce content
-
-class GURL;
-
-// Utility class for reading and updating ContentSettings for app banners.
-class AppBannerSettingsHelper {
- public:
-  // Checks if a URL is allowed to show a banner for the given package.
-  static bool IsAllowed(content::WebContents* web_contents,
-                        const GURL& origin_url,
-                        const std::string& package_name);
-
-  // Blocks a URL from showing a banner for the given package.
-  static void Block(content::WebContents* web_contents,
-                    const GURL& origin_url,
-                    const std::string& package_name);
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(AppBannerSettingsHelper);
-};
-
-#endif  // CHROME_BROWSER_ANDROID_BANNERS_APP_BANNER_SETTINGS_HELPER_H_