Move download stuff from download helper back to TabContents. This is basically a revert of r8576...

chrome/browser/prerender/prerender_contents.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
 #include "base/values.h"
 #include "chrome/browser/prerender/prerender_final_status.h"
-#include "chrome/browser/ui/download/download_tab_helper_delegate.h"
 #include "content/browser/tab_contents/tab_contents_observer.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/common/notification_registrar.h"
 
 class RenderViewHost;
 class TabContents;
 class TabContentsWrapper;
 struct FaviconURL;
 struct ViewHostMsg_FrameNavigate_Params;
 
@@ skipping 10 matching lines @@
 class PrerenderManager;
 class PrerenderRenderViewHostObserver;
 class PrerenderTracker;
 
 // This class is a peer of TabContents. It can host a renderer, but does not
 // have any visible display. Its navigation is not managed by a
 // NavigationController because is has no facility for navigating (other than
 // programatically view window.location.href) or RenderViewHostManager because
 // it is never allowed to navigate across a SiteInstance boundary.
 class PrerenderContents : public NotificationObserver,
-                          public TabContentsObserver,
-                          public DownloadTabHelperDelegate {
+                          public TabContentsObserver {
  public:
   // PrerenderContents::Create uses the currently registered Factory to create
   // the PrerenderContents. Factory is intended for testing.
   class Factory {
    public:
     Factory() {}
     virtual ~Factory() {}
 
     // Ownership is not transfered through this interface as prerender_manager,
     // prerender_tracker, and profile are stored as weak pointers.
@@ skipping 71 matching lines @@
   virtual void OnRenderViewGone(int status, int exit_code);
 
   // TabContentsObserver implementation.
   virtual void DidStopLoading() OVERRIDE;
 
   // NotificationObserver
   virtual void Observe(int type,
                        const NotificationSource& source,
                        const NotificationDetails& details) OVERRIDE;
 
-  // DownloadTabHelperDelegate implementation.
-  virtual bool CanDownload(int request_id) OVERRIDE;
-  virtual void OnStartDownload(DownloadItem* download,
-                               TabContentsWrapper* tab) OVERRIDE;
-
   // Adds an alias URL, for one of the many redirections. If the URL can not
   // be prerendered - for example, it's an ftp URL - |this| will be destroyed
   // and false is returned. Otherwise, true is returned and the alias is
   // remembered.
   virtual bool AddAliasURL(const GURL& url);
 
   // The preview TabContents (may be null).
   TabContentsWrapper* prerender_contents() const {
     return prerender_contents_.get();
   }
@@ skipping 127 matching lines @@
 
   // Offset by which to offset prerendered pages
   static const int32 kPrerenderPageIdOffset = 10;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderContents);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_