Support specifying the GSSAPI library that will be used.

net/http/http_auth_handler_factory.cc

Index: net/http/http_auth_handler_factory.cc
diff --git a/net/http/http_auth_handler_factory.cc b/net/http/http_auth_handler_factory.cc
index d001fd4098ae4e2698f3e51c1ca0f12d14805e6e..f33337c028ea3092776508efa526184aa4b15c78 100644
--- a/net/http/http_auth_handler_factory.cc
+++ b/net/http/http_auth_handler_factory.cc
@@ -50,6 +50,11 @@ HttpAuthHandlerRegistryFactory* HttpAuthHandlerFactory::CreateDefault(
       "digest", new HttpAuthHandlerDigest::Factory());
   HttpAuthHandlerNegotiate::Factory* negotiate_factory =
       new HttpAuthHandlerNegotiate::Factory();
+#if defined(OS_POSIX)
+  GSSAPILibrary* gssapi_library =
+      new GSSAPISharedLibrary("");
+  negotiate_factory->set_library(gssapi_library);
+#endif
   negotiate_factory->set_host_resolver(host_resolver);
   registry_factory->RegisterSchemeFactory("negotiate", negotiate_factory);
   registry_factory->RegisterSchemeFactory(
@@ -73,6 +78,7 @@ HttpAuthHandlerRegistryFactory* HttpAuthHandlerRegistryFactory::Create(
     const std::vector<std::string>& supported_schemes,
     URLSecurityManager* security_manager,
     HostResolver* host_resolver,
+    const std::string& gssapi_library_name,
     bool negotiate_disable_cname_lookup,
     bool negotiate_enable_port) {
   HttpAuthHandlerRegistryFactory* registry_factory =
@@ -92,6 +98,11 @@ HttpAuthHandlerRegistryFactory* HttpAuthHandlerRegistryFactory::Create(
   if (IsSupportedScheme(supported_schemes, "negotiate")) {
     HttpAuthHandlerNegotiate::Factory* negotiate_factory =
         new HttpAuthHandlerNegotiate::Factory();
+#if defined(OS_POSIX)
+    GSSAPILibrary* gssapi_library =
+        new GSSAPISharedLibrary(gssapi_library_name);
+    negotiate_factory->set_library(gssapi_library);
+#endif
     negotiate_factory->set_url_security_manager(security_manager);
     DCHECK(host_resolver || negotiate_disable_cname_lookup);
     negotiate_factory->set_host_resolver(host_resolver);