Cleanup: Fix some misc nits in printing code.

chrome/browser/printing/print_preview_dialog_controller_unittest.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_dialog_controller.h"
 #include "chrome/browser/printing/print_preview_test.h"
 #include "chrome/browser/printing/print_view_manager.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/webui/print_preview/print_preview_ui.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/common/url_constants.h"
 
 using content::WebContents;
 
 namespace printing {
 
-typedef PrintPreviewTest PrintPreviewDialogControllerUnitTest;
+using PrintPreviewDialogControllerUnitTest = PrintPreviewTest;
 
 // Create/Get a preview dialog for initiator.
 TEST_F(PrintPreviewDialogControllerUnitTest, GetOrCreatePreviewDialog) {
   // Lets start with one window with one tab.
   EXPECT_EQ(1u, chrome::GetTotalBrowserCount());
   EXPECT_EQ(0, browser()->tab_strip_model()->count());
   chrome::NewTab(browser());
   EXPECT_EQ(1, browser()->tab_strip_model()->count());
 
   // Create a reference to initiator contents.
@@ skipping 123 matching lines @@
       dialog_controller->GetOrCreatePreviewDialog(initiator);
 
   // New print preview dialog is a constrained window, so the number of tabs is
   // still 1.
   EXPECT_EQ(1, browser()->tab_strip_model()->count());
   // Verify a new print preview dialog has been created.
   EXPECT_NE(new_preview_dialog, preview_dialog);
 }
 
 }  // namespace printing