Revert 175890: actually, looks like we want this to also help move chromeos webui pages out of src/…

content/public/browser/web_ui_controller_factory.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 CONTENT_PUBLIC_BROWSER_WEB_UI_CONTROLLER_FACTORY_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_UI_CONTROLLER_FACTORY_H_
 
 #include "content/common/content_export.h"
 #include "content/public/browser/web_ui.h"
 
 class GURL;
 
 namespace content {
 
 class BrowserContext;
 class WebContents;
 class WebUIController;
 
 // Interface for an object which controls which URLs are considered WebUI URLs
 // and creates WebUIController instances for given URLs.
 class CONTENT_EXPORT WebUIControllerFactory {
  public:
   virtual ~WebUIControllerFactory() {}
 
+  // Call to register a factory.
+  static void RegisterFactory(WebUIControllerFactory* factory);
+
   // Returns a WebUIController instance for the given URL, or NULL if the URL
   // doesn't correspond to a WebUI.
   virtual WebUIController* CreateWebUIControllerForURL(
       WebUI* web_ui, const GURL& url) const = 0;
 
   // Gets the WebUI type for the given URL. This will return kNoWebUI if the
   // corresponding call to CreateWebUIForURL would fail, or something non-NULL
   // if CreateWebUIForURL would succeed.
   virtual WebUI::TypeID GetWebUIType(BrowserContext* browser_context,
                                      const GURL& url) const = 0;
@@ skipping 12 matching lines @@
   // URLs with WebUI types (as above) and also URLs that can be loaded by
   // normal tabs such as javascript: URLs or about:hang.
   virtual bool IsURLAcceptableForWebUI(BrowserContext* browser_context,
                                        const GURL& url,
                                        bool data_urls_allowed) const = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_UI_CONTROLLER_FACTORY_H_