Get rid of the last RenderViewHostDelegate usage in chrome.

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 18 matching lines @@
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
-#include "content/public/browser/render_view_host_delegate.h"
 #include "content/public/browser/web_contents.h"
+#include "content/public/browser/web_contents_delegate.h"
 #include "webkit/plugins/webplugininfo.h"
 
 using content::NativeWebKeyboardEvent;
 using content::NavigationController;
 using content::WebContents;
 using content::WebUIMessageHandler;
 
 namespace {
 
 void EnableInternalPDFPluginForTab(TabContentsWrapper* preview_tab) {
@@ skipping 171 matching lines @@
 TabContentsWrapper* PrintPreviewTabController::GetOrCreatePreviewTab(
     TabContentsWrapper* initiator_tab) {
   DCHECK(initiator_tab);
 
   // Get the print preview tab for |initiator_tab|.
   TabContentsWrapper* preview_tab = GetPrintPreviewForTab(initiator_tab);
   if (!preview_tab)
     return CreatePrintPreviewTab(initiator_tab);
 
   // Show the initiator tab holding the existing preview tab.
-  initiator_tab->web_contents()->GetRenderViewHost()->GetDelegate()->Activate();
+  WebContents* web_contents = initiator_tab->web_contents();
+  web_contents->GetDelegate()->ActivateContents(web_contents);
   return preview_tab;
 }
 
 TabContentsWrapper* PrintPreviewTabController::GetPrintPreviewForTab(
     TabContentsWrapper* tab) const {
   // |preview_tab_map_| is keyed by the preview tab, so if find() succeeds, then
   // |tab| is the preview tab.
   PrintPreviewTabMap::const_iterator it = preview_tab_map_.find(tab);
   if (it != preview_tab_map_.end())
     return tab;
@@ skipping 299 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