Sanitize https:// URLs before sending them to PAC scripts.

chrome/browser/net/proxy_service_factory.cc

Index: chrome/browser/net/proxy_service_factory.cc
diff --git a/chrome/browser/net/proxy_service_factory.cc b/chrome/browser/net/proxy_service_factory.cc
index 26da0f6d766a98dc9242c1919a4e8795a0746451..63e1062fbfb688e8674bc2e45a5a9dc5f3afdc5b 100644
--- a/chrome/browser/net/proxy_service_factory.cc
+++ b/chrome/browser/net/proxy_service_factory.cc
@@ -188,5 +188,10 @@ std::unique_ptr<net::ProxyService> ProxyServiceFactory::CreateProxyService(
 
   proxy_service->set_quick_check_enabled(quick_check_enabled);
 
+  if (command_line.HasSwitch(switches::kUnsafePacUrl)) {
+    proxy_service->set_sanitize_url_policy(
+        net::ProxyService::SanitizeUrlPolicy::UNSAFE);
+  }
+
   return proxy_service;
 }