Add policy to use system default printer

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 <limits.h>
 #include <stddef.h>
 
 #include <utility>
@@ skipping 598 matching lines @@
     base::Value::Type::STRING },
 #endif  // defined(OS_ANDROID)
 
 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
   { key::kNativeMessagingUserLevelHosts,
     extensions::pref_names::kNativeMessagingUserLevelHosts,
     base::Value::Type::BOOLEAN },
   { key::kBrowserAddPersonEnabled,
     prefs::kBrowserAddPersonEnabled,
     base::Value::Type::BOOLEAN },
+  { key::kPrintPreviewUseSystemDefaultPrinter,

[Lei Zhang, 2017/06/16 21:47:43]

So if we are going to put this in a (!defined(OS_CHROMEOS) &&
!defined(OS_ANDROID)) section, should we do that consistently elsewhere?

[rbpotter, 2017/06/19 23:10:49]

Done.

+    prefs::kPrintPreviewUseSystemDefaultPrinter,
+    base::Value::Type::BOOLEAN },
 #endif  // !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 
   { key::kForceBrowserSignin,
     prefs::kForceBrowserSignin,
     base::Value::Type::BOOLEAN },
 
 #if defined(OS_WIN)
   { key::kWelcomePageOnOSUpgradeEnabled,
     prefs::kWelcomePageOnOSUpgradeEnabled,
     base::Value::Type::BOOLEAN },
@@ skipping 415 matching lines @@
 #endif  // defined(OS_CHROMEOS)
 
 #if BUILDFLAG(ENABLE_PLUGINS)
   handlers->AddHandler(base::MakeUnique<PluginPolicyHandler>());
 #endif  // BUILDFLAG(ENABLE_PLUGINS)
 
   return handlers;
 }
 
 }  // namespace policy