Change NavigationController::LoadURL to take a Referrer class instead of a GURL as referrer

chrome/browser/geolocation/chrome_geolocation_permission_context_unittest.cc

 // 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.
 
 #include <set>
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/hash_tables.h"
@@ skipping 192 matching lines @@
     bool allowed) {
   ASSERT_EQ(responses_.count(process->GetID()), 1U);
   EXPECT_EQ(bridge_id, responses_[process->GetID()].first);
   EXPECT_EQ(allowed, responses_[process->GetID()].second);
   responses_.erase(process->GetID());
 }
 
 void GeolocationPermissionContextTests::AddNewTab(const GURL& url) {
   TabContents* new_tab =
       new TabContents(profile(), NULL, MSG_ROUTING_NONE, NULL, NULL);
-  new_tab->controller().LoadURL(url, GURL(), content::PAGE_TRANSITION_TYPED,
-                                std::string());
+  new_tab->controller().LoadURL(url, content::Referrer(),
+                                content::PAGE_TRANSITION_TYPED, std::string());
   static_cast<TestRenderViewHost*>(new_tab->render_manager_for_testing()->
       current_host())->SendNavigate(extra_tabs_.size() + 1, url);
   extra_tabs_.push_back(new TabContentsWrapper(new_tab));
 }
 
 void GeolocationPermissionContextTests::CheckTabContentsState(
     const GURL& requesting_frame,
     ContentSetting expected_content_setting) {
   TabSpecificContentSettings* content_settings =
       contents_wrapper()->content_settings();
@@ skipping 369 matching lines @@
   ASSERT_FALSE(infobar_0->ShouldExpire(details));
   // Commit the "GoBack()" above, and ensure the infobar is now expired.
   contents()->CommitPendingNavigation();
   details.entry = contents()->controller().GetLastCommittedEntry();
   ASSERT_TRUE(infobar_0->ShouldExpire(details));
 
   // Delete the tab contents.
   DeleteContents();
   infobar_0->InfoBarClosed();
 }