Plumb the referrer throughout the OpenURL APIs....

webkit/tools/test_shell/test_webview_delegate.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.
 
 // This file contains the implementation of TestWebViewDelegate, which serves
 // as the WebViewDelegate for the TestShellWebHost.  The host is expected to
 // have initialized a MessageLoop before these methods are called.
 
 #include "webkit/tools/test_shell/test_webview_delegate.h"
 
@@ skipping 94 matching lines @@
                                                      actual_mime_type))
     return NULL;
 
   if (actual_mime_type && !actual_mime_type->empty())
     return WebPluginDelegateImpl::Create(info.file, *actual_mime_type, hwnd);
   else
     return WebPluginDelegateImpl::Create(info.file, mime_type, hwnd);
 }
 
 void TestWebViewDelegate::OpenURL(WebView* webview, const GURL& url,
+                                  const GURL& referrer,
                                   WindowOpenDisposition disposition) {
   DCHECK_NE(disposition, CURRENT_TAB);  // No code for this
   if (disposition == SUPPRESS_OPEN)
     return;
   TestShell* shell;
   if (TestShell::CreateNewWindow(UTF8ToWide(url.spec()), &shell))
     shell->Show(shell->webView(), disposition);
 }
 
 void TestWebViewDelegate::DidStartLoading(WebView* webview) {
@@ skipping 787 matching lines @@
     else
       return L"main frame";
   } else {
     if (name.length())
       return L"frame \"" + name + L"\"";
     else
       return L"frame (anonymous)";
   }
 }