Move download stuff to download tab helper.

chrome/browser/ui/browser.h

Index: chrome/browser/ui/browser.h
diff --git a/chrome/browser/ui/browser.h b/chrome/browser/ui/browser.h
index 9231df5ccf263afaa42db6a945c5e45e222bb9a6..4c04a4e01290234fdb1d40b0ec1c52bae173abbe 100644
--- a/chrome/browser/ui/browser.h
+++ b/chrome/browser/ui/browser.h
@@ -31,6 +31,7 @@
 #include "chrome/browser/ui/blocked_content/blocked_content_tab_helper_delegate.h"
 #include "chrome/browser/ui/bookmarks/bookmark_tab_helper_delegate.h"
 #include "chrome/browser/ui/browser_navigator.h"
+#include "chrome/browser/ui/download/download_tab_helper_delegate.h"
 #include "chrome/browser/ui/search_engines/search_engine_tab_helper_delegate.h"
 #include "chrome/browser/ui/shell_dialogs.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper_delegate.h"
@@ -67,6 +68,7 @@ class Browser : public TabHandlerDelegate,
                 public SearchEngineTabHelperDelegate,
                 public BlockedContentTabHelperDelegate,
                 public BookmarkTabHelperDelegate,
+                public DownloadTabHelperDelegate,
                 public PageNavigator,
                 public CommandUpdater::CommandUpdaterDelegate,
                 public NotificationObserver,
@@ -809,7 +811,6 @@ class Browser : public TabHandlerDelegate,
   virtual void SetFocusToLocationBar(bool select_all);
   virtual void RenderWidgetShowing();
   virtual int GetExtraRenderViewHeight() const;
-  virtual void OnStartDownload(DownloadItem* download, TabContents* tab);
   virtual void ShowPageInfo(Profile* profile,
                             const GURL& url,
                             const NavigationEntry::SSLStatus& ssl,
@@ -857,6 +858,12 @@ class Browser : public TabHandlerDelegate,
   virtual void URLStarredChanged(TabContentsWrapper* source,
                                  bool starred) OVERRIDE;
 
+  // Overridden from DownloadTabHelperDelegate:
+  virtual bool CanDownload(int request_id) OVERRIDE;
+  virtual void OnStartDownload(DownloadItem* download,
+                               TabContentsWrapper* tab) OVERRIDE;
+
+
   // Overridden from SelectFileDialog::Listener:
   virtual void FileSelected(const FilePath& path, int index, void* params);