Kill PropertyBag, switch WebContents to SupportsUserData.

chrome/browser/ui/cocoa/web_dialog_window_controller.mm

 // 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.
 
 #import "chrome/browser/ui/cocoa/web_dialog_window_controller.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_nsobject.h"
-#include "base/property_bag.h"
 #include "base/sys_string_conversions.h"
 #import "chrome/browser/ui/browser_dialogs.h"
 #import "chrome/browser/ui/cocoa/browser_command_executor.h"
 #import "chrome/browser/ui/cocoa/chrome_event_processing_window.h"
 #include "chrome/browser/ui/tab_contents/tab_contents.h"
 #include "chrome/browser/ui/webui/chrome_web_contents_handler.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui_message_handler.h"
 #include "ui/base/keycodes/keyboard_codes.h"
@@ skipping 319 matching lines @@
 
 - (void)loadDialogContents {
   tabContents_.reset(new TabContents(WebContents::Create(
       delegate_->browser_context(), NULL, MSG_ROUTING_NONE, NULL)));
   [[self window]
       setContentView:tabContents_->web_contents()->GetNativeView()];
   tabContents_->web_contents()->SetDelegate(delegate_.get());
 
   // This must be done before loading the page; see the comments in
   // WebDialogUI.
-  WebDialogUI::GetPropertyAccessor().SetProperty(
-      tabContents_->web_contents()->GetPropertyBag(), delegate_.get());
+  WebDialogUI::SetDelegate(tabContents_->web_contents(), delegate_.get());
 
   tabContents_->web_contents()->GetController().LoadURL(
       delegate_->GetDialogContentURL(),
       content::Referrer(),
       content::PAGE_TRANSITION_START_PAGE,
       std::string());
 
   // TODO(akalin): add accelerator for ESC to close the dialog box.
   //
   // TODO(akalin): Figure out why implementing (void)cancel:(id)sender
   // to do the above doesn't work.
 }
 
 - (void)windowWillClose:(NSNotification*)notification {
   delegate_->WindowControllerClosed();
   [self autorelease];
 }
 
 @end