Revert 272587 "Remove kEnablePrintPreview now that the pdf plugi..."

trunk/src/chrome/browser/ui/webui/print_preview/print_preview_ui_browsertest.cc

Index: trunk/src/chrome/browser/ui/webui/print_preview/print_preview_ui_browsertest.cc
===================================================================
--- trunk/src/chrome/browser/ui/webui/print_preview/print_preview_ui_browsertest.cc	(revision 272619)
+++ trunk/src/chrome/browser/ui/webui/print_preview/print_preview_ui_browsertest.cc	(working copy)
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
@@ -12,6 +13,7 @@
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/browser_dialogs.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
+#include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/in_process_browser_test.h"
@@ -44,6 +46,12 @@
  public:
   PrintPreviewTest() {}
 
+#if !defined(GOOGLE_CHROME_BUILD)
+  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
+    command_line->AppendSwitch(switches::kEnablePrintPreview);
+  }
+#endif
+
   void Print() {
     content::TestNavigationObserver nav_observer(NULL);
     nav_observer.StartWatchingNewWebContents();