Fix various issues from r343263.

chrome/browser/ui/webui/print_preview/print_preview_ui.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_ui.h"
 
 #include <map>
 #include <vector>
 
 #include "base/id_map.h"
@@ skipping 380 matching lines @@
 
 }  // namespace
 
 PrintPreviewUI::PrintPreviewUI(content::WebUI* web_ui)
     : ConstrainedWebDialogUI(web_ui),
       initial_preview_start_time_(base::TimeTicks::Now()),
       id_(g_print_preview_ui_id_map.Get().Add(this)),
       handler_(NULL),
       source_is_modifiable_(true),
       source_has_selection_(false),
-      dialog_closed_(false),
-      weak_ptr_factory_(this) {
+      dialog_closed_(false) {
   // Set up the chrome://print/ data source.
   Profile* profile = Profile::FromWebUI(web_ui);
   content::WebUIDataSource::Add(profile, CreatePrintPreviewUISource());
 
   // Set up the chrome://theme/ source.
   content::URLDataSource::Add(profile, new ThemeSource(profile));
 
   // WebUI owns |handler_|.
   handler_ = new PrintPreviewHandler();
   web_ui->AddMessageHandler(handler_);
@@ skipping 244 matching lines @@
 }
 
 void PrintPreviewUI::SetSelectedFileForTesting(const base::FilePath& path) {
   handler_->FileSelected(path, 0, NULL);
 }
 
 void PrintPreviewUI::SetPdfSavedClosureForTesting(
     const base::Closure& closure) {
   handler_->SetPdfSavedClosureForTesting(closure);
 }
-
-base::WeakPtr<PrintPreviewUI> PrintPreviewUI::GetWeakPtr() {
-  return weak_ptr_factory_.GetWeakPtr();
-}