Third-party appcache blocking.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 8c6aeaf4001dc7d3b77f70744f882cfffbcf6fa7..f334c2e0cd7baa50d49ca8582f56c7e9f027b048 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -335,13 +335,13 @@ SkBitmap* ChromeContentBrowserClient::GetDefaultFavicon() {
 
 bool ChromeContentBrowserClient::AllowAppCache(
     const GURL& manifest_url,
+    const GURL& first_party,
     const content::ResourceContext& context) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   ProfileIOData* io_data =
       reinterpret_cast<ProfileIOData*>(context.GetUserData(NULL));
-  // FIXME(jochen): get the correct top-level origin.
   ContentSetting setting = io_data->GetHostContentSettingsMap()->
-      GetCookieContentSetting(manifest_url, manifest_url, true);
+      GetCookieContentSetting(manifest_url, first_party, true);
   DCHECK(setting != CONTENT_SETTING_DEFAULT);
   return setting != CONTENT_SETTING_BLOCK;
 }