Update to Chromium revision 47fb4821 (#318735).

- Remove the in-process PDF plugin implementation. A new implementation is now required (issue #1565).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@2043 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser/content_browser_client.cc

@@ -932,7 +932,6 @@ void CefContentBrowserClient::ResourceDispatcherHostCreated() {
 
 void CefContentBrowserClient::OverrideWebkitPrefs(
     content::RenderViewHost* rvh,
-    const GURL& url,
     content::WebPreferences* prefs) {
   const base::CommandLine* command_line =
       base::CommandLine::ForCurrentProcess();