Flag and whitelist to allow crxfs api in NaCl

chrome/browser/chrome_content_browser_client.h

 // Copyright (c) 2012 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_CHROME_CONTENT_BROWSER_CLIENT_H_
 #define CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "content/public/browser/content_browser_client.h"
 
 #if defined(OS_ANDROID)
 #include "base/memory/scoped_ptr.h"
 #endif
 
 namespace content {
 class QuotaPermissionContext;
 }
 
-namespace extensions {
-class Extension;
-}
-
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
 namespace chrome {
 
 class ChromeContentBrowserClient : public content::ContentBrowserClient {
  public:
   ChromeContentBrowserClient();
   virtual ~ChromeContentBrowserClient();
@@ skipping 220 matching lines @@
  private:
   // Set of origins that can use TCP/UDP private APIs from NaCl.
   std::set<std::string> allowed_socket_origins_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeContentBrowserClient);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_