Removed --disable-print-preview switch and policy.

chrome/browser/printing/print_preview_test.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_test.h"
 
-#include "base/prefs/pref_service.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_iterator.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
-#include "chrome/common/pref_names.h"
 #include "chrome/test/base/test_browser_window.h"
 #include "components/web_modal/web_contents_modal_dialog_host.h"
 #include "content/public/browser/plugin_service.h"
 #include "content/public/browser/web_contents.h"
 
 using web_modal::WebContentsModalDialogHost;
 using web_modal::ModalDialogHostObserver;
 
 namespace {
 
@@ skipping 50 matching lines @@
 PrintPreviewTest::PrintPreviewTest() {}
 PrintPreviewTest::~PrintPreviewTest() {}
 
 void PrintPreviewTest::SetUp() {
   BrowserWithTestWindowTest::SetUp();
 
   // The PluginService will be destroyed at the end of the test (due to the
   // ShadowingAtExitManager in our base class).
   content::PluginService::GetInstance()->Init();
   content::PluginService::GetInstance()->DisablePluginsDiscoveryForTesting();
-
-  profile()->GetPrefs()->SetBoolean(prefs::kPrintPreviewDisabled, false);
 }
 
 BrowserWindow* PrintPreviewTest::CreateBrowserWindow() {
   return new PrintPreviewTestBrowserWindow;
 }