Plumb the referrer throughout the OpenURL APIs....

chrome/browser/site_instance_unittest.cc

 // Copyright (c) 2006-2008 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 "chrome/browser/navigation_entry.h"
 #include "chrome/browser/render_view_host.h"
 #include "chrome/browser/web_contents.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/test/testing_profile.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 57 matching lines @@
   int browsingDeleteCounter = 0;
   const GURL url("test:foo");
 
   // Ensure that instances are deleted when their NavigationEntries are gone.
   TestSiteInstance* instance =
       TestSiteInstance::CreateTestSiteInstance(NULL, &siteDeleteCounter,
                                                &browsingDeleteCounter);
   EXPECT_EQ(0, siteDeleteCounter);
 
   NavigationEntry* e1 = new NavigationEntry(TAB_CONTENTS_WEB, instance, 0, url,
+                                            GURL(),
                                             std::wstring(),
                                             PageTransition::LINK);
 
   // Redundantly setting e1's SiteInstance shouldn't affect the ref count.
   e1->set_site_instance(instance);
   EXPECT_EQ(0, siteDeleteCounter);
 
   // Add a second reference
   NavigationEntry* e2 = new NavigationEntry(TAB_CONTENTS_WEB, instance, 0, url,
-                                            std::wstring(),
+                                            GURL(), std::wstring(), 
                                             PageTransition::LINK);
 
   // Now delete both entries and be sure the SiteInstance goes away.
   delete e1;
   EXPECT_EQ(0, siteDeleteCounter);
   EXPECT_EQ(0, browsingDeleteCounter);
   delete e2;
   EXPECT_EQ(1, siteDeleteCounter);
   // instance is now deleted
   EXPECT_EQ(1, browsingDeleteCounter);
@@ skipping 30 matching lines @@
   const GURL url("test:foo");
 
   SiteInstance* instance1 =
       TestSiteInstance::CreateTestSiteInstance(NULL, &siteDeleteCounter1,
                                                &browsingDeleteCounter);
   SiteInstance* instance2 =
       TestSiteInstance::CreateTestSiteInstance(NULL, &siteDeleteCounter2,
                                                &browsingDeleteCounter);
 
   NavigationEntry* e1 = new NavigationEntry(TAB_CONTENTS_WEB, instance1, 0,
-                                            url,
+                                            url, GURL(),
                                             std::wstring(),
                                             PageTransition::LINK);
   // Clone the entry
   NavigationEntry* e2 = new NavigationEntry(*e1);
 
   // Should be able to change the SiteInstance of the cloned entry.
   e2->set_site_instance(instance2);
 
   // The first SiteInstance should go away after deleting e1, since e2 should
   // no longer be referencing it.
@@ skipping 226 matching lines @@
 
   // Should be able to see that we don't have SiteInstances.
   EXPECT_FALSE(browsing_instance->HasSiteInstance(
       GURL("https://www.google.com")));  // not visited before
   EXPECT_FALSE(browsing_instance3->HasSiteInstance(
       GURL("http://www.yahoo.com")));  // different BI, different profile
 
   // browsing_instances will be deleted when their SiteInstances are deleted
 }