Add a policy for disabling the stripping of PAC URLs.

chrome/browser/net/proxy_service_factory.h

Index: chrome/browser/net/proxy_service_factory.h
diff --git a/chrome/browser/net/proxy_service_factory.h b/chrome/browser/net/proxy_service_factory.h
index afbeda0d20225dc035b26f4097cffa974736509d..aea984fa81360a5687af68a5f5a75416b26a883a 100644
--- a/chrome/browser/net/proxy_service_factory.h
+++ b/chrome/browser/net/proxy_service_factory.h
@@ -52,7 +52,8 @@ class ProxyServiceFactory {
       net::NetworkDelegate* network_delegate,
       std::unique_ptr<net::ProxyConfigService> proxy_config_service,
       const base::CommandLine& command_line,
-      bool quick_check_enabled);
+      bool quick_check_enabled,
+      bool pac_https_url_stripping_enabled);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(ProxyServiceFactory);