Support specifying the GSSAPI library that will be used.

chrome/browser/io_thread.cc

Index: chrome/browser/io_thread.cc
diff --git a/chrome/browser/io_thread.cc b/chrome/browser/io_thread.cc
index 9b7f7180319fcdbd0db228f4f18347a05c2d3cc5..65be41e598c633ba7ffb7c092152ae7489b5d6aa 100644
--- a/chrome/browser/io_thread.cc
+++ b/chrome/browser/io_thread.cc
@@ -229,6 +229,7 @@ IOThread::IOThread(PrefService* local_state)
   auth_server_whitelist_ = local_state->GetString(prefs::kAuthServerWhitelist);
   auth_delegate_whitelist_ = local_state->GetString(
       prefs::kAuthNegotiateDelegateWhitelist);
+  gssapi_library_name_ = local_state->GetString(prefs::kGSSAPILibraryName);
 }
 
 IOThread::~IOThread() {
@@ -428,6 +429,7 @@ void IOThread::RegisterPrefs(PrefService* local_state) {
   local_state->RegisterBooleanPref(prefs::kEnableAuthNegotiatePort, false);
   local_state->RegisterStringPref(prefs::kAuthServerWhitelist, "");
   local_state->RegisterStringPref(prefs::kAuthNegotiateDelegateWhitelist, "");
+  local_state->RegisterStringPref(prefs::kGSSAPILibraryName, "");
 }
 
 net::HttpAuthHandlerFactory* IOThread::CreateDefaultAuthHandlerFactory(
@@ -447,6 +449,7 @@ net::HttpAuthHandlerFactory* IOThread::CreateDefaultAuthHandlerFactory(
       supported_schemes,
       globals_->url_security_manager.get(),
       resolver,
+      gssapi_library_name_,
       negotiate_disable_cname_lookup_,
       negotiate_enable_port_);
 }