Move download stuff to download tab helper.

chrome/browser/download/download_process_handle.cc

Index: chrome/browser/download/download_process_handle.cc
diff --git a/chrome/browser/download/download_process_handle.cc b/chrome/browser/download/download_process_handle.cc
index f4c7f321ddda56d2205eceee447831c98efcbbde..ba0016e9422492265d3fc8ab4b558f2e619b9168 100644
--- a/chrome/browser/download/download_process_handle.cc
+++ b/chrome/browser/download/download_process_handle.cc
@@ -26,6 +26,11 @@ TabContents* DownloadProcessHandle::GetTabContents() {
   return tab_util::GetTabContentsByID(child_id_, render_view_id_);
 }
 
+TabContentsWrapper* DownloadProcessHandle::GetTabContentsWrapper() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  return tab_util::GetTabContentsWrapperByID(child_id_, render_view_id_);
+}
+
 DownloadManager* DownloadProcessHandle::GetDownloadManager() {
   TabContents* contents = GetTabContents();
   if (!contents)