Start splitting out WebUI into an implementation class and an interface that each page implements...

chrome/browser/ui/webui/sync_internals_ui.h

 // Copyright (c) 2011 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_UI_WEBUI_SYNC_INTERNALS_UI_H_
 #define CHROME_BROWSER_UI_WEBUI_SYNC_INTERNALS_UI_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/sync/js/js_event_handler.h"
 #include "chrome/browser/sync/js/js_reply_handler.h"
 #include "content/browser/webui/web_ui.h"
+#include "content/public/browser/web_ui_controller.h"
 
 namespace browser_sync {
 class JsController;
 }  // namespace browser_sync
 
 // The implementation for the chrome://sync-internals page.
-class SyncInternalsUI : public WebUI,
+class SyncInternalsUI : public WebUI, public content::WebUIController,
                         public browser_sync::JsEventHandler,
                         public browser_sync::JsReplyHandler {
  public:
   explicit SyncInternalsUI(content::WebContents* contents);
   virtual ~SyncInternalsUI();
 
-  // WebUI implementation.
+  // WebUIController implementation.
   //
   // The following messages are processed:
   //
   // getAboutInfo():
   //   Immediately fires a onGetAboutInfoFinished() event with a
   //   dictionary of sync-related stats and info.
   //
   // All other messages are routed to the sync service if it exists,
   // and dropped otherwise.
   //
   // TODO(akalin): Add a simple isSyncEnabled() message and make
   // getAboutInfo() be handled by the sync service.
-  virtual void OnWebUISend(const GURL& source_url,
-                           const std::string& name,
-                           const base::ListValue& args) OVERRIDE;
+  virtual bool OverrideHandleWebUIMessage(const GURL& source_url,
+                                          const std::string& name,
+                                          const base::ListValue& args) OVERRIDE;
 
   // browser_sync::JsEventHandler implementation.
   virtual void HandleJsEvent(
       const std::string& name,
       const browser_sync::JsEventDetails& details) OVERRIDE;
 
   // browser_sync::JsReplyHandler implementation.
   virtual void HandleJsReply(
       const std::string& name,
       const browser_sync::JsArgList& args) OVERRIDE;
 
  private:
   base::WeakPtrFactory<SyncInternalsUI> weak_ptr_factory_;
   base::WeakPtr<browser_sync::JsController> js_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncInternalsUI);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_SYNC_INTERNALS_UI_H_