Have AppCache code go through the content embedder API for content settings checks.

chrome/browser/net/chrome_url_request_context.h

 // Copyright (c) 2011 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_NET_CHROME_URL_REQUEST_CONTEXT_H_
 #define CHROME_BROWSER_NET_CHROME_URL_REQUEST_CONTEXT_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/file_path.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/extensions/extension_info_map.h"
 #include "chrome/browser/extensions/extension_webrequest_api.h"
 #include "chrome/browser/prefs/pref_change_registrar.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/extensions/extension_icon_set.h"
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/chrome_blob_storage_context.h"
+#include "content/common/notification_observer.h"
+#include "content/common/notification_registrar.h"
 #include "net/base/cookie_policy.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "webkit/fileapi/file_system_context.h"
 
 class ChromeURLDataManagerBackend;
 class ChromeURLRequestContextFactory;
 class IOThread;
 class PrefService;
 class Profile;
@@ skipping 222 matching lines @@
 
   // NULL if not yet initialized. Otherwise, it is the net::URLRequestContext
   // instance that was lazilly created by GetURLRequestContext.
   // Access only from the IO thread.
   scoped_refptr<net::URLRequestContext> url_request_context_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeURLRequestContextGetter);
 };
 
 #endif  // CHROME_BROWSER_NET_CHROME_URL_REQUEST_CONTEXT_H_