Switch CoreTabHelper to use WebContentsUserData.

chrome/browser/printing/print_preview_tab_controller.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_preview_tab_controller.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 147 matching lines @@
  public:
   PrintPreviewWebContentDelegate(Profile* profile, TabContents* initiator_tab);
   virtual ~PrintPreviewWebContentDelegate();
 
   // Overridden from WebDialogWebContentsDelegate:
   virtual void HandleKeyboardEvent(
       WebContents* source,
       const NativeWebKeyboardEvent& event) OVERRIDE;
 
   // Overridden from CoreTabHelperDelegate:
-  virtual bool CanReloadContents(TabContents* source) const OVERRIDE;
-  virtual bool CanSaveContents(TabContents* source) const OVERRIDE;
+  virtual bool CanReloadContents(
+      content::WebContents* web_contents) const OVERRIDE;
+  virtual bool CanSaveContents(
+      content::WebContents* web_contents) const OVERRIDE;
 
  private:
   TabContents* tab_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintPreviewWebContentDelegate);
 };
 
 PrintPreviewWebContentDelegate::PrintPreviewWebContentDelegate(
     Profile* profile,
     TabContents* initiator_tab)
     : WebDialogWebContentsDelegate(profile, new ChromeWebContentsHandler),
       tab_(initiator_tab) {}
 
 PrintPreviewWebContentDelegate::~PrintPreviewWebContentDelegate() {}
 
 bool PrintPreviewWebContentDelegate::CanReloadContents(
-    TabContents* source) const {
+    content::WebContents* web_contents) const {
   return false;
 }
 
 bool PrintPreviewWebContentDelegate::CanSaveContents(
-    TabContents* source) const {
+    content::WebContents* web_contents) const {
   return false;
 }
 
 void PrintPreviewWebContentDelegate::HandleKeyboardEvent(
     WebContents* source,
     const NativeWebKeyboardEvent& event) {
   // Disabled on Mac due to http://crbug.com/112173
 #if !defined(OS_MACOSX)
   Browser* current_browser =
       browser::FindBrowserWithWebContents(tab_->web_contents());
@@ skipping 225 matching lines @@
   PrintPreviewWebContentDelegate* pp_wcd =
       new PrintPreviewWebContentDelegate(profile, initiator_tab);
   ConstrainedWebDialogDelegate* constrained_delegate =
       ui::CreateConstrainedWebDialog(
           profile,
           web_dialog_delegate,
           pp_wcd,
           initiator_tab);
   TabContents* preview_tab = constrained_delegate->tab();
   EnableInternalPDFPluginForTab(preview_tab);
-  preview_tab->core_tab_helper()->set_delegate(pp_wcd);
+  CoreTabHelper::FromWebContents(preview_tab->web_contents())->
+      set_delegate(pp_wcd);
 
   // Add an entry to the map.
   preview_tab_map_[preview_tab] = initiator_tab;
   waiting_for_new_preview_page_ = true;
 
   AddObservers(initiator_tab);
   AddObservers(preview_tab);
 
   return preview_tab;
 }
@@ skipping 80 matching lines @@
   PrintPreviewUI* print_preview_ui = static_cast<PrintPreviewUI*>(
       preview_tab->web_contents()->GetWebUI()->GetController());
   if (print_preview_ui)
     print_preview_ui->OnTabDestroyed();
 
   preview_tab_map_.erase(preview_tab);
   RemoveObservers(preview_tab);
 }
 
 }  // namespace printing