Revert 85504 - Move download stuff to download tab helper.

content/browser/tab_contents/tab_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 CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #define CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 26 matching lines @@
 #endif
 
 namespace gfx {
 class Rect;
 }
 
 namespace history {
 class HistoryAddPageArgs;
 }
 
+class WebUI;
+class DownloadItem;
 class Extension;
 class InfoBarDelegate;
 class LoadNotificationDetails;
 class PluginObserver;
 class Profile;
-struct RendererPreferences;
 class RenderViewHost;
 class SessionStorageNamespace;
 class SiteInstance;
 class SkBitmap;
 class TabContentsDelegate;
 class TabContentsObserver;
 class TabContentsSSLHelper;
 class TabContentsView;
+class URLPattern;
+struct RendererPreferences;
 struct ThumbnailScore;
-class URLPattern;
 struct ViewHostMsg_FrameNavigate_Params;
 struct WebPreferences;
-class WebUI;
 
 // Describes what goes in the main content area of a tab. TabContents is
 // the only type of TabContents, and these should be merged together.
 class TabContents : public PageNavigator,
                     public NotificationObserver,
                     public RenderViewHostDelegate,
                     public RenderViewHostManager::Delegate,
                     public JavaScriptAppModalDialogDelegate,
                     public net::NetworkChangeNotifier::OnlineStateObserver {
  public:
@@ skipping 305 matching lines @@
   // WARNING: This does not sanity-check |index|!
   InfoBarDelegate* GetInfoBarDelegateAt(size_t index) {
     return infobar_delegates_[index];
   }
 
   // Toolbars and such ---------------------------------------------------------
 
   // Returns true if a Bookmark Bar should be shown for this tab.
   virtual bool ShouldShowBookmarkBar();
 
+  // Notifies the delegate that a download is about to be started.
+  // This notification is fired before a local temporary file has been created.
+  bool CanDownload(int request_id);
+
+  // Notifies the delegate that a download started.
+  void OnStartDownload(DownloadItem* download);
+
   // Called when a ConstrainedWindow we own is about to be closed.
   void WillClose(ConstrainedWindow* window);
 
   // Interstitials -------------------------------------------------------------
 
   // Various other systems need to know about our interstitials.
   bool showing_interstitial_page() const {
     return render_manager_.interstitial_page() != NULL;
   }
 
@@ skipping 566 matching lines @@
   ObserverList<TabContentsObserver> observers_;
 
   // Content restrictions, used to disable print/copy etc based on content's
   // (full-page plugins for now only) permissions.
   int content_restrictions_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContents);
 };
 
 #endif  // CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_