Enable (optional) blocking of webrequests in case a PAC script cannot be fetched or is invalid.

chrome/common/automation_constants.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_COMMON_AUTOMATION_CONSTANTS_H__
 #define CHROME_COMMON_AUTOMATION_CONSTANTS_H__
 #pragma once
 
 namespace automation {
 
 // JSON value labels for proxy settings that are passed in via
 // AutomationMsg_SetProxyConfig. These are here since they are used by both
 // AutomationProvider and AutomationProxy.
 extern const char kJSONProxyAutoconfig[];
 extern const char kJSONProxyNoProxy[];
 extern const char kJSONProxyPacUrl[];
+extern const char kJSONProxyPacMandatory[];
 extern const char kJSONProxyBypassList[];
 extern const char kJSONProxyServer[];
 
 // When passing the kTestingChannelID switch to the browser, prepend
 // this prefix to the channel id to enable the named testing interface.
 // Named testing interface is used when you want to connect an
 // AutomationProxy to an already-running browser instance.
 extern const char kNamedInterfacePrefix[];
 
 // Amount of time to wait before querying the browser.
@@ skipping 61 matching lines @@
 // property.
 enum AutomationMsg_ExtensionProperty {
   AUTOMATION_MSG_EXTENSION_ID = 0,
   AUTOMATION_MSG_EXTENSION_NAME,
   AUTOMATION_MSG_EXTENSION_VERSION,
   AUTOMATION_MSG_EXTENSION_BROWSER_ACTION_INDEX,
 };
 
 
 #endif  // CHROME_COMMON_AUTOMATION_CONSTANTS_H__