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

chrome/browser/ui/webui/sync_promo/sync_promo_ui.cc

 // 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.
 
 #include "chrome/browser/ui/webui/sync_promo/sync_promo_ui.h"
 
 #include "base/command_line.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/first_run/first_run.h"
@@ skipping 87 matching lines @@
           *out_value = "";
         return true;
       }
     }
   }
   return false;
 }
 
 }  // namespace
 
-SyncPromoUI::SyncPromoUI(WebContents* contents) : WebUI(contents) {
+SyncPromoUI::SyncPromoUI(WebContents* contents) : WebUI(contents, this) {
   should_hide_url_ = true;
 
   SyncPromoHandler* handler = new SyncPromoHandler(
       g_browser_process->profile_manager());
   AddMessageHandler(handler);
 
   // Set up the chrome://theme/ source.
   Profile* profile = Profile::FromBrowserContext(contents->GetBrowserContext());
   ThemeSource* theme = new ThemeSource(profile);
   profile->GetChromeURLDataManager()->AddDataSource(theme);
@@ skipping 149 matching lines @@
     UTF16ToUTF8(output.data(), output.length(), &url);
     return GURL(url);
   }
   return GURL();
 }
 
 // static
 bool SyncPromoUI::UserHasSeenSyncPromoAtStartup(Profile* profile) {
   return profile->GetPrefs()->GetInteger(prefs::kSyncPromoStartupCount) > 0;
 }