Plumb the referrer throughout the OpenURL APIs....

chrome/browser/tabs/tab_strip_model.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 <algorithm>
 
 #include "base/gfx/point.h"
 #include "base/logging.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/browser_about_handler.h"
@@ skipping 316 matching lines @@
 
 bool TabStripModel::ShouldResetGroupOnSelect(TabContents* contents) const {
   int index = GetIndexOfTabContents(contents);
   DCHECK(ContainsIndex(index));
   return contents_data_.at(index)->reset_group_on_select;
 }
 
 TabContents* TabStripModel::AddBlankTab(bool foreground) {
   DCHECK(delegate_);
   TabContents* contents = delegate_->CreateTabContentsForURL(
-      NewTabUIURL(), profile_, PageTransition::TYPED, false, NULL);
+      NewTabUIURL(), GURL(), profile_, PageTransition::TYPED, false, NULL);
   AddTabContents(contents, -1, PageTransition::TYPED, foreground);
   return contents;
 }
 
 TabContents* TabStripModel::AddBlankTabAt(int index, bool foreground) {
   DCHECK(delegate_);
   TabContents* contents = delegate_->CreateTabContentsForURL(
-      NewTabUIURL(), profile_, PageTransition::LINK, false, NULL);
+      NewTabUIURL(), GURL(), profile_, PageTransition::LINK, false, NULL);
   AddTabContents(contents, index, PageTransition::LINK, foreground);
   return contents;
 }
 
 void TabStripModel::AddTabContents(TabContents* contents,
                                    int index,
                                    PageTransition::Type transition,
                                    bool foreground) {
   if (transition == PageTransition::LINK) {
     // Only try to be clever if we're opening a LINK.
@@ skipping 249 matching lines @@
 }
 
 // static
 bool TabStripModel::OpenerMatches(TabContentsData* data,
                                   NavigationController* opener,
                                   bool use_group) {
   return data->opener == opener || (use_group && data->group == opener);
 }