Fix various issues from r343263.

chrome/browser/ui/webui/print_preview/print_preview_ui.cc

Index: chrome/browser/ui/webui/print_preview/print_preview_ui.cc
diff --git a/chrome/browser/ui/webui/print_preview/print_preview_ui.cc b/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
index f075900d928d4d352be1f609f46b4c271b9ec08c..4680f74aafcafd2d6ff5aff8c4c7547574dea285 100644
--- a/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
+++ b/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
@@ -398,8 +398,7 @@ PrintPreviewUI::PrintPreviewUI(content::WebUI* web_ui)
       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());
@@ -664,7 +663,3 @@ void PrintPreviewUI::SetPdfSavedClosureForTesting(
     const base::Closure& closure) {
   handler_->SetPdfSavedClosureForTesting(closure);
 }
-
-base::WeakPtr<PrintPreviewUI> PrintPreviewUI::GetWeakPtr() {
-  return weak_ptr_factory_.GetWeakPtr();
-}