Move download stuff to download tab helper.

chrome/browser/ui/download/download_tab_helper.cc

 // 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.
 
 #include "chrome/browser/ui/download/download_tab_helper.h"
 
+#include "chrome/browser/browser_process.h"
 #include "chrome/browser/download/download_manager.h"
+#include "chrome/browser/download/download_request_limiter.h"
 #include "chrome/browser/download/download_util.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/blocked_content/blocked_content_tab_helper.h"
+#include "chrome/browser/ui/blocked_content/blocked_content_tab_helper_delegate.h"
+#include "chrome/browser/ui/download/download_tab_helper_delegate.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/common/render_messages.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/common/view_messages.h"
 
 DownloadTabHelper::DownloadTabHelper(TabContentsWrapper* tab_contents)
     : TabContentsObserver(tab_contents->tab_contents()),
-      tab_contents_wrapper_(tab_contents) {
+      tab_contents_wrapper_(tab_contents),
+      delegate_(NULL) {
   DCHECK(tab_contents);
 }
 
 DownloadTabHelper::~DownloadTabHelper() {
 }
 
 void DownloadTabHelper::OnSavePage() {
   // If we can not save the page, try to download it.
   if (!SavePackage::IsSavableContents(tab_contents()->contents_mime_type())) {
     DownloadManager* dlm = tab_contents()->profile()->GetDownloadManager();
@@ skipping 27 matching lines @@
                                  const FilePath& dir_path,
                                  SavePackage::SavePackageType save_type) {
   // Stop the page from navigating.
   tab_contents()->Stop();
 
   save_package_ =
       new SavePackage(tab_contents_wrapper_, save_type, main_file, dir_path);
   return save_package_->Init();
 }
 
+bool DownloadTabHelper::CanDownload(int request_id) {
+  if (delegate_)
+    return delegate_->CanDownload(request_id);
+  return true;
+}
+
+void DownloadTabHelper::OnStartDownload(DownloadItem* download) {
+  DCHECK(download);
+
+  BlockedContentTabHelperDelegate* blocked_content_delegate =
+      tab_contents_wrapper_->blocked_content_tab_helper()->delegate();
+  if (!blocked_content_delegate)
+    return;
+
+  // Download in a constrained popup is shown in the tab that opened it.
+  TabContentsWrapper* tab_contents =
+      blocked_content_delegate->GetConstrainingContentsWrapper(
+          tab_contents_wrapper_);
+
+  if (tab_contents && tab_contents->download_tab_helper()->delegate()) {
+    tab_contents->download_tab_helper()->delegate()->OnStartDownload(
+        download, tab_contents_wrapper_);
+  }
+}
+
 bool DownloadTabHelper::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(DownloadTabHelper, message)
     IPC_MESSAGE_HANDLER(ViewHostMsg_SaveURLAs, OnSaveURL)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
+void DownloadTabHelper::DidGetUserGesture() {
+  DownloadRequestLimiter* limiter =
+      g_browser_process->download_request_limiter();
+  if (limiter)
+    limiter->OnUserGesture(tab_contents());
+}