Revert of Restored disable print preview policy.

chrome/browser/policy/configuration_policy_handler_list_factory.cc

 // Copyright 2013 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/policy/configuration_policy_handler_list_factory.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/memory/scoped_vector.h"
 #include "base/values.h"
@@ skipping 84 matching lines @@
     base::Value::TYPE_BOOLEAN },
   { key::kPasswordManagerEnabled,
     password_manager::prefs::kPasswordManagerSavingEnabled,
     base::Value::TYPE_BOOLEAN },
   { key::kPasswordManagerAllowShowPasswords,
     password_manager::prefs::kPasswordManagerAllowShowPasswords,
     base::Value::TYPE_BOOLEAN },
   { key::kPrintingEnabled,
     prefs::kPrintingEnabled,
     base::Value::TYPE_BOOLEAN },
-  { key::kDisablePrintPreview,
-    prefs::kPrintPreviewDisabled,
-    base::Value::TYPE_BOOLEAN },
   { key::kMetricsReportingEnabled,
     prefs::kMetricsReportingEnabled,
     base::Value::TYPE_BOOLEAN },
   { key::kApplicationLocaleValue,
     prefs::kApplicationLocale,
     base::Value::TYPE_STRING },
   { key::kDisabledPlugins,
     prefs::kPluginsDisabledPlugins,
     base::Value::TYPE_LIST },
   { key::kDisabledPluginsExceptions,
@@ skipping 673 matching lines @@
           chrome_schema,
           SCHEMA_STRICT,
           SimpleSchemaValidatingPolicyHandler::RECOMMENDED_ALLOWED,
           SimpleSchemaValidatingPolicyHandler::MANDATORY_PROHIBITED)));
 #endif  // defined(OS_CHROMEOS)
 
   return handlers.Pass();
 }
 
 }  // namespace policy