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

trunk/src/chrome/browser/printing/print_preview_dialog_controller_browsertest.cc

Index: trunk/src/chrome/browser/printing/print_preview_dialog_controller_browsertest.cc
===================================================================
--- trunk/src/chrome/browser/printing/print_preview_dialog_controller_browsertest.cc	(revision 272619)
+++ trunk/src/chrome/browser/printing/print_preview_dialog_controller_browsertest.cc	(working copy)
@@ -2,12 +2,14 @@
 // 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/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "chrome/browser/printing/print_preview_dialog_controller.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
+#include "chrome/common/chrome_switches.h"
 #include "chrome/common/print_messages.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/in_process_browser_test.h"
@@ -121,6 +123,12 @@
   }
 
  private:
+  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
+#if !defined(GOOGLE_CHROME_BUILD)
+    command_line->AppendSwitch(switches::kEnablePrintPreview);
+#endif
+  }
+
   virtual void SetUpOnMainThread() OVERRIDE {
     WebContents* first_tab =
         browser()->tab_strip_model()->GetActiveWebContents();