Get rid of the last RenderViewHostDelegate usage in chrome.

chrome/browser/ui/webui/print_preview/print_preview_handler.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/ui/webui/print_preview/print_preview_handler.h"
 
 #include <ctype.h>
 
 #include <string>
 #include <vector>
@@ skipping 28 matching lines @@
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/browser/ui/webui/print_preview/print_preview_ui.h"
 #include "chrome/browser/ui/webui/print_preview/sticky_settings.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/print_messages.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.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 "content/public/browser/web_ui.h"
 #include "printing/backend/print_backend.h"
 #include "printing/metafile.h"
 #include "printing/metafile_impl.h"
 #include "printing/page_range.h"
 #include "printing/page_size_margins.h"
 #include "printing/print_settings.h"
 #include "unicode/ulocdata.h"
 
 #if !defined(OS_MACOSX)
@@ skipping 639 matching lines @@
 
   if (print_preview_ui->source_is_modifiable()) {
     GetStickySettings()->GetLastUsedMarginSettings(&initial_settings);
     GetNumberFormatAndMeasurementSystem(&initial_settings);
   }
   web_ui()->CallJavascriptFunction("setInitialSettings", initial_settings);
 }
 
 void PrintPreviewHandler::ActivateInitiatorTabAndClosePreviewTab() {
   TabContentsWrapper* initiator_tab = GetInitiatorTab();
-  if (initiator_tab)
-    initiator_tab->web_contents()->GetRenderViewHost()->
-        GetDelegate()->Activate();
+  if (initiator_tab) {
+    WebContents* web_contents = initiator_tab->web_contents();
+    web_contents->GetDelegate()->ActivateContents(web_contents);
+  }
   PrintPreviewUI* print_preview_ui = static_cast<PrintPreviewUI*>(
       web_ui()->GetController());
   print_preview_ui->OnClosePrintPreviewTab();
 }
 
 void PrintPreviewHandler::SendPrinterCapabilities(
     const DictionaryValue& settings_info) {
   VLOG(1) << "Get printer capabilities finished";
   web_ui()->CallJavascriptFunction("updateWithPrinterCapabilities",
                                    settings_info);
@@ skipping 181 matching lines @@
     return;
 
   // We no longer require the initiator tab details. Remove those details
   // associated with the preview tab to allow the initiator tab to create
   // another preview tab.
   printing::PrintPreviewTabController* tab_controller =
       printing::PrintPreviewTabController::GetInstance();
   if (tab_controller)
     tab_controller->EraseInitiatorTabInfo(preview_tab_wrapper());
 }