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

content/browser/appcache/chrome_appcache_service.h

Index: content/browser/appcache/chrome_appcache_service.h
===================================================================
--- content/browser/appcache/chrome_appcache_service.h	(revision 84527)
+++ content/browser/appcache/chrome_appcache_service.h	(working copy)
@@ -7,8 +7,8 @@
 #pragma once
 
 #include "base/memory/ref_counted.h"
-#include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "content/browser/browser_thread.h"
+#include "content/common/notification_observer.h"
 #include "content/common/notification_registrar.h"
 #include "webkit/appcache/appcache_policy.h"
 #include "webkit/appcache/appcache_service.h"
@@ -16,6 +16,10 @@
 
 class FilePath;
 
+namespace content {
+class ResourceContext;
+}
+
 // An AppCacheService subclass used by the chrome. There is an instance
 // associated with each Profile. This derivation adds refcounting semantics
 // since a profile has multiple URLRequestContexts which refer to the same
@@ -35,7 +39,7 @@
 
   void InitializeOnIOThread(
       const FilePath& cache_path,  // may be empty to use in-memory structures
-      scoped_refptr<HostContentSettingsMap> content_settings_map,
+      const content::ResourceContext* resource_context,
       scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy,
       bool clear_local_state_on_exit);
 
@@ -57,7 +61,7 @@
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
-  scoped_refptr<HostContentSettingsMap> host_contents_settings_map_;
+  const content::ResourceContext* resource_context_;
   NotificationRegistrar registrar_;
   bool clear_local_state_on_exit_;
   FilePath cache_path_;