Extract a minimal subset of WebDialogUI/WebDialogDelegate from src/chrome -> src/ui/web_dialogs

chrome/browser/printing/print_dialog_cloud.cc

 // 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.
 
 #include "chrome/browser/printing/print_dialog_cloud.h"
 #include "chrome/browser/printing/print_dialog_cloud_internal.h"
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 665 matching lines @@
   }
   if (!pref_service->FindPreference(prefs::kCloudPrintDialogHeight)) {
     pref_service->RegisterIntegerPref(prefs::kCloudPrintDialogHeight,
                                       kDefaultHeight,
                                       PrefService::UNSYNCABLE_PREF);
   }
 
   int width = pref_service->GetInteger(prefs::kCloudPrintDialogWidth);
   int height = pref_service->GetInteger(prefs::kCloudPrintDialogHeight);
 
-  WebDialogDelegate* dialog_delegate =
+  web_dialogs::WebDialogDelegate* dialog_delegate =
       new internal_cloud_print_helpers::CloudPrintWebDialogDelegate(
           path_to_file, width, height, std::string(), job_title, print_ticket,
           file_type, modal, delete_on_close, close_after_signin,
           callback);
   browser::ShowWebDialog(modal ? browser->window()->GetNativeHandle() : NULL,
       profile, browser, dialog_delegate);
 }
 
 void CreateDialogSigninImpl(const base::Closure& callback) {
   CreateDialogImpl(FilePath(), string16(), string16(), std::string(),
@@ skipping 102 matching lines @@
                                                    file_type,
                                                    false,
                                                    delete_on_close);
       return true;
     }
   }
   return false;
 }
 
 }  // end namespace