Revert r23616 from 172.

chrome/browser/plugin_process_host.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 "build/build_config.h"
 
 #include "chrome/browser/plugin_process_host.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
@@ skipping 50 matching lines @@
 class PluginDownloadUrlHelper : public URLRequest::Delegate {
   static const int kDownloadFileBufferSize = 32768;
  public:
   PluginDownloadUrlHelper(const std::string& download_url,
                           int source_pid, gfx::NativeWindow caller_window);
   ~PluginDownloadUrlHelper();
 
   void InitiateDownload();
 
   // URLRequest::Delegate
+  virtual void OnReceivedRedirect(URLRequest* request,
+                                  const GURL& new_url);
   virtual void OnAuthRequired(URLRequest* request,
                               net::AuthChallengeInfo* auth_info);
   virtual void OnSSLCertificateError(URLRequest* request,
                                      int cert_error,
                                      net::X509Certificate* cert);
   virtual void OnResponseStarted(URLRequest* request);
   virtual void OnReadCompleted(URLRequest* request, int bytes_read);
 
   void OnDownloadCompleted(URLRequest* request);
 
@@ skipping 39 matching lines @@
   }
 }
 
 void PluginDownloadUrlHelper::InitiateDownload() {
   download_file_request_= new URLRequest(GURL(download_url_), this);
   download_file_request_->set_origin_pid(download_source_pid_);
   download_file_request_->set_context(Profile::GetDefaultRequestContext());
   download_file_request_->Start();
 }
 
+void PluginDownloadUrlHelper::OnReceivedRedirect(URLRequest* request,
+                                                 const GURL& new_url) {
+}
+
 void PluginDownloadUrlHelper::OnAuthRequired(
     URLRequest* request,
     net::AuthChallengeInfo* auth_info) {
   URLRequest::Delegate::OnAuthRequired(request, auth_info);
   DownloadCompletedHelper(false);
 }
 
 void PluginDownloadUrlHelper::OnSSLCertificateError(
     URLRequest* request,
     int cert_error,
@@ skipping 418 matching lines @@
   DCHECK(MessageLoop::current() ==
          ChromeThread::GetMessageLoop(ChromeThread::IO));
 
   ChromePluginLib *chrome_plugin = ChromePluginLib::Find(info_.path);
   if (chrome_plugin) {
     void *data_ptr = const_cast<void*>(reinterpret_cast<const void*>(&data[0]));
     uint32 data_len = static_cast<uint32>(data.size());
     chrome_plugin->functions().on_message(data_ptr, data_len);
   }
 }