Plumb the referrer throughout the OpenURL APIs....

chrome/browser/views/constrained_window_impl.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/views/constrained_window_impl.h"
 
 #include "base/gfx/rect.h"
 #include "chrome/app/chrome_dll_resource.h"
 #include "chrome/app/theme/theme_resources.h"
 #include "chrome/browser/tab_contents.h"
@@ skipping 960 matching lines @@
   // Ask the delegate's (which is a TabContents) own TabContentsDelegate to
   // activate itself...
   owner_->delegate()->ActivateContents(owner_);
 
   // Set as the foreground constrained window.
   ActivateConstrainedWindow();
 }
 
 void ConstrainedWindowImpl::OpenURLFromTab(TabContents* source,
                                            const GURL& url,
+                                           const GURL& referrer,
                                            WindowOpenDisposition disposition,
                                            PageTransition::Type transition) {
   // We ignore source right now.
-  owner_->OpenURL(this, url, disposition, transition);
+  owner_->OpenURL(this, url, referrer, disposition, transition);
 }
 
 void ConstrainedWindowImpl::LoadingStateChanged(TabContents* source) {
   // TODO(beng): (http://b/1085543) Implement a throbber for the Constrained
   //             Window.
   UpdateUI(TabContents::INVALIDATE_EVERYTHING);
   non_client_view()->SetShowThrobber(source->is_loading());
 }
 
 void ConstrainedWindowImpl::NavigateToPage(TabContents* source,
@@ skipping 386 matching lines @@
           initial_bounds,
           parent->delegate()->ShouldDisplayURLField());
 
   window->InitSizeForContents(window_bounds);
 
   // This is a constrained popup window and thus we need to animate it in.
   window->StartSuppressedAnimation();
 
   return window;
 }